Author: Subwoofer

Light Review: Nitecore TM20K – 20,000 Lumens!

17 September, 2022

Nitecore’s Tiny Monsters have always been punchy performers, from the first one I tested, (the TM11) all the way through to another Monster light that is Tiny compared to its output. Join me in this Nitecore TM20K review, 20K being the 20,000 Lumens, yes, 20,000 Lumens output from a palm sized light. As well as a look round the TM20K, this review includes output measurements, runtime graphs, and beamshots to give you the true story of its performance. It really is a Monster!

Video Overview

This video is an overview of the TM20K with a first look over the light before we get onto more details and the measurements.

What is in the box?:
This gallery shows the TM20K’s packaging and what is included. The holstered TM20K, a USB-C charging cable, a lanyard, and a thin cord for threading the lanyard.
There is also a look over the belt holster and how the top flap opens.

A good look round the TM20K – Things to look out for here are:
First, do not turn the TM20K straight on out of the box! There is a blue protective plastic film over the lens that will melt and make a mess of the front of the light, so make sure to take this off.
The body of the TM20K is a single piece, and this is not broken by any battery doors, as the TM20K has a built-in battery and is USB-C rechargeable.
The lanyard hole is next to the charging port and mode switch. On the opposite side to the mode switch is the selector toggle switch with lockout setting.
One of the flat sides has a wide steel belt clip. Also shown are the small heat sink fins and grip knurling.
On the tail of the TM20K you find the power button, tactical switches and the charging port.

The beam

Please be careful not to judge tint based on images you see on a computer screen. Unless properly calibrated, the screen itself will change the perceived tint.

The indoor beamshot is intended to give an idea of the beam shape/quality rather than tint. All beamshots are taken using daylight white balance. The woodwork (stairs and skirting) are painted Farrow & Ball “Off-White”, and the walls are a light sandy colour called ‘String’ again by Farrow & Ball. I don’t actually have a ‘white wall’ in the house to use for this, and my wife won’t have one!

For the beamshot comparison I used three output modes. The Daily mode ‘Floodlight’ and ‘Spotlight’ special output levels plus the ‘Turbo’ 20,000 Lumen mode.

Indoors are only the ‘Floodlight’ and ‘Spotlight’ modes as Turbo is too bright. Then moving outdoors with the same modes (around the 2,000 Lumen level), and then with the same exposure, the Turbo output. 20,000 lumens really lights things up!!

Batteries and output:

The TM20K runs on a built in battery made of 2 x 21700 4800mAh cells.

Please note, all quoted lumen figures are from a DIY integrating sphere, and according to ANSI standards. Although every effort is made to give as accurate a result as possible, they should be taken as an estimate only. The results can be used to compare outputs in this review and others I have published.

19 XP-L2 LEDs to blast out 20,000 lumens.

When working with any lights with an output over 5,000 lumens, I need to make modifications to the integrating sphere. For the TM20K, due to the extreme output and small size, it is limited to short bursts of the 20,000 lumen Turbo output. So the output table is a little different to most of the reviews I carry out.

Half the table is normal, then where it starts to list an ND filter, this is a ‘neutral density’ filter that simply cuts the light reaching the sensor by approximately 90%. Reference readings are taken to ensure the filter factor is correct, and a set of measurements were taken. With the short 8s burst of Turbo, several readings were taken and averaged. All of this is included in the table.

The graphs in this gallery show a few different things. First is a trace of the charging current consumed when charging the TM20K.
Next up is the runtime trace for High output. Due to the Turbo output being a burst mode only, for the full runtime, the graph shows the output for the high output level.
Now we have two copies of the same graph, the first shows all the traces taken to check the behaviour during the ANSI 30 second measurement time.

Shown first is an initial ‘High’ ANSI output trace (Section 1), then the Turbo button held for 30s (Section 2) where the output drops to High after 8s. Section 3 shows what happens when you intentionally use Burst, Burst, Burst until the TM20K won’t output Turbo any more.

As the ANSI output should be measured at 30s, the 8s Turbo output would mean ‘ANSI Turbo’ measurement was 3611 lm, so this means we can’t actually state an ANSI Turbo output and instead I have gone for ‘max at switch on’ for the value of Turbo, and this is what was used in the output table.

The TM20K in use

20,000 lumens in the palm of your hand, here it is:

And as a starting point I have to say the TM20K is scary bright! As well as that it heats up so quickly on Turbo you really know this is pumping out the power.

Being about the size of a 2x 18650 light used to be, the TM20K is noticeably heavier and more dense than this older class of light, a sign it is packed with performance.

The supplied holster is very nicely made and is a rigid style with flip-top lid style opening. When belt mounted you need to pull the holster body away from you to allow the lid to hinge open far enough to get the TM20K out. This might have worked better flipping open away from you. The magnetic closure is a nice touch and allows for silent opening (without the ‘tearing’ sound of Velcro).

One of the most important features for a light like this is the lockout; yes the ‘not outputting any light’ feature. Absolutely critical as the output is so high, if contained it will be dangerous.

Lockout should always be easier to activate than to deactivate, and Nitecore have made it very easy. Slide the toggle switch to the padlock and once it has been there for 2s the TM20K is locked.

While locked, if you slide the toggle to 1 or 2, the power button flashes five times to let you know it is locked. Unlocking requires two switches to be used at the same time. Holding the mode switch down as you slide the toggle switch from lockout to position 1 or 2 with the beam turning on briefly to let you know unlocking was successful.

All of that to talk about the TM20K not outputting anything, well, you will be very happy about this feature.

In terms of handling and the interface, although the TM20K lists ‘tactical’ modes, the layout of buttons and ease of access to them would not be my choice for use in a pressured situation. General use, and even search and rescue use, but not reaction or time critical scenarios where you might miss buttons or press ones you didn’t mean to.

Onto those 20,000 lumens. You get a burst of 8s at this level. If you immediately reactivate Turbo, you can do this two further times (three times before a cooling off period) where the thermal protection prevents the TM20K from going above High mode even using the Turbo button. So from cold, 24 consecutive seconds of 20,000 lumen output. Measured and confirmed as shown in the output table and graphs, all from a palm sized light. This is seriously impressive.

Going to the other extreme, I would have preferred a mode lower than 350lm. This is the ‘ultra-low’ mode on the TM20K. Even if you are breaking out the Tiny Monster, there is still a practical lower level for every day use and 350lm is too high, so this is a light to bring out when you want a lot of light.

Considering the size, that performance on High giving a hour of solid output, 45 minutes of which is over 3000lm, does make this a workhorse, even if you ignore the Turbo output.

Not forgetting my previous comments about the tactical mode, the momentary output in this mode is great for searching especially when other people are around and you don’t want to blind them.

My preference is always for removable/replaceable batteries, but the other side to this is the guaranteed performance of the cells chosen by Nitecore to power this Tiny Monster, and the simplification of the design as it doesn’t need a battery door. Being a super high performance light, the cell characteristics are critical, so we can take the built-in cells as a positive point.

20,000 lumens is shocking and astounding from a pocket sized light, well done Nitecore.

Review Summary
The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
‘Ultra-low’ mode is still 350 lumens.
Holster lid opening into your body is a bit awkward.

_______________________________________________
Things I like
_______________________________________________
20,000 Lumen burst output.
Excellent Lockout implementation.
Momentary and latching operation.
Fixed Flood and Spot special modes.
Instant access twin Turbo switches.
Very compact for the output performance.
Quality holster included.
19 XP-L2 LEDs.

Gear Review: HORL 2 Knife Sharpener

9 September, 2022

HORL 1993 are creating a revolution in sharpening with their innovative line of rolling knife sharpeners. Many of you will likely have seen their system popping up in various social media feeds, especially if you have any interests involving knives. Though primarily aimed at sharpening kitchen knives, having given the system a quick try out at IWA 2022, I was intrigued to test it in more depth and with other types of knives. Join me in this HORL 2 knife sharpener review for a closer look at this new approach to guided sharpening.

What is on test?:

For this review, on test are the HORL 2 sharpener with add-on Premium Sharpening kit plus the storage block. HORL also sent the tea towel and branded plasters.

A good look round the HORL 2 – Things to look out for here are:
In this first part which includes the HORL 2 sharpener plus the optional storage block, I’m breaking it into three sections. First the HORL 2 box and first look over the knife holder / angle guide, then views all round the storage block, and finally the rolling sharpening stone itself.

Inside the box are a couple of printed guides, and the two main components, the rolling sharpener and the magnetic guide block. The precisely finished wooden guide block has two angled ends, 15 degrees and 20 degrees. The ends are marked with their angle and have a rubber surface to cushion and hold the knife.

An optional extra that goes with the sharpener so well you really should get it, is the storage block. Available in either of the two woods used for the sharpeners themselves you can match the sharpener or go with a wood contrast. The block has two cut-outs, one is an angled pocket to sit the rolling sharpener in, and the other is a slot that has a couple of bolt heads which the magnetic guide block grabs on to. The quality of finish is very high.

Lastly in this detailed look at the components is the rolling sharpener itself. A cylinder with a round sharpening stone at each end.
The wooden centre grip section of the rolling sharpener is in the matching wood to the guide block, and rotates freely. At each end are rubber rings to act as wheels, and the sharpening disks. As it comes this includes a diamond disk and a grooved ceramic coated disk.
Also shown here is how the HORL 2 neatly sits on the storage block.

The Premium Sharpening Kit add-on:
Though you can produce a good edge with the standard HOLR 2, the premium sharpening kit is designed to further refine that edge and take it to another level.
The kit includes two extra sharpening disks of 3000 and 6000 grit. These are found inside matching storage tins, wrapped in a cloth square. As well as these two fine stones, you also have a thick leather strop for cleaning and deburring the edge.
The 3000 grit stone is blue and the finest 6000 grit stone is white. Both are marked on the back of the disk with the grit.

Changing the Stone:
Changing stones on the HORL 2 is simple. Grip the rubber wheel firmly and simply unscrew the stone you want to change; then screw in the replacement. My own preference was the diamond and 3000 grit as a pair.

Video overview and sharpening test.

This video takes detailed look at the HORL 2 being used for the first time on a Santoku kitchen knife and an outdoor / hunting knife. It is quite long but also uncovers a few tips and tricks you might be interested in as well as showing a reprofile of the edge angle. It is worth watching for the insights into how the sharpener interacts with parts of the knife and possible precautions you might want to take.

What it is like to use?

If you have watched the whole video you will have seen what I’m going to describe in this section for real. For this review I’m using the HORL 2 along with two optional extras, the storage block, and the premium sharpening kit with its finer grit stones and leather strop.

As the simplest and most basic look at using the HORL 2, these photos show how you set up the knife on the magnetic angle block with the roller sharpener against the knife edge. You can see how the edge-to-stone angle is maintained and allows sharpening by rolling the sharpener backwards and forwards.
Of note is that your kitchen work surface (or table) is used as part of the sharpening system because you need a large surface to working the rolling sharpener along the blade. Typically a sharpening system will contain the dust and metal filings produced to the sharpener, but the HORL 2 drops the filings that don’t stick to the magnetized blade all over the work surface. It is a bit of a messy eater when it comes to sharpening systems.

Beyond the basic operation of the HORL 2 here are a few general observations:

  • Operation is incredibly simple for use with most kitchen knives.
  • If the depth of the blade is more than the diameter of the sharpening disk you have to use ‘riser blocks’ (like a chopping board) to be able to sharpen the edge.
  • It is very easy to bump the sharpening stone into the knife bolster or handle. I use masking tape to protect these areas from damage.
  • You will magnetise the blade by using the magnetic angle guide block.
  • The sharpening dust collects on the magnetised blade and edge during use.
  • Shorter / narrower blades (paring knives or pocket knives) need very careful positioning on the angle block.
  • As your worktop is part of the sharpening system, this will be covered in metal filings

When swapping from a kitchen knife to an outdoor / hunting knife, it became apparent of an issue you need to work round regarding the tip of the knife.
With many hunting knives, the blade edge curves upward to meet the spine of the blade at the tip. This introduces challenges of maintaining the edge angle all through the sweep of the edge on any sharpening system. On the HORL 2 it requires the user to no longer rely on the angle block to provide the correct angle, instead the user has to twist the rolling sharpener to the correct angle at the tip.
Illustrated below is the angle the roller needs to be moved to sharpen this knife all the way to the tip. It is actually 20 degrees, the same angle as is used on the magnetic angle block. With the rubber wheels on the roller gripping the work surface, this does need the user to force the roller to twist round and get the hang of following the angle near the tip.
Another feature of a hunting knife verses a kitchen knife it that typically there is a ‘plunge line’ where the blade profile and ricasso meet. Also shown below are photos of how the corners of the HORL 2 stones hit the plunge line and might not quite reach the very end of the cutting edge. You will also likely mark the ricasso with the stone.
Finally with the grooved ceramic stone of the HORL 2 and the tip of a knife with a curve there is a possibility of the edge catching into the groove. This happened a couple of times in the video when turning the sharpener to work the tip of the blade, and prompted me to abandon the ceramic stone for a blade with curved tip like this. For kitchen knives this was not an issue.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

I’m starting with what doesn’t work so well, so I can finish on a more positive note

_______________________________________________
What doesn’t work so well for me
_______________________________________________

  • Needs ‘riser blocks’ for blades wider than the sharpening disk.
  • Magnetises the blade and this collects metal filings on the blade and angle block.
  • Covers the kitchen work surface in metal filings.
  • Still requires the user to control the angle of the stone at the blade tip.
  • Easy to hit and mark the handle or other parts of the knife with the rolling stone.

_______________________________________________
Things I like
_______________________________________________

  • For most typical straight-edge kitchen knives it makes sharpening super simple and easy.
  • Elegant and attractive solution that looks good in any kitchen.
  • Choice of stone types and grits.
  • Easy touch ups.
  • Very quick to set up and use.
  • Choice of 15 DPS or 20 DPS sharpening angles.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

As well as the Tactical Reviews Facebook Page, please consider visiting one of the following to start/join in any discussion.

BladeForums – Knife Reviews (US based Forum for Knife Discussion)

CandlePowerForums – Knife Reviews Section (Largest and Friendliest Flashlight Community Forum)

Knife Review: Extrema Ratio SATRE – Special Report

26 February, 2022

The Extrema Ratio Satre is a pocket-sized, light and extremely tough fixed blade knife, designed in collaboration with Daniele Dal Canto, a Master Advanced F.I.S.S.S. instructor. In this special report review of the Extrema Ratio Satre, I am able to carry out a special set of tests to quantify the edge apex stability (resistance to rolling) in a direct comparison of the two steels the Satre is available in, N690 and S600, as I have all three versions of the Satre available to test, the standard Black and Satin (N690) and the S600 version at an super hard 64 HRC. This special report also include two videos, an overview and detailed measurement, plus one showing the steps of the edge stability testing (SET – Structural Edge Testing).

Video Overview

This video is a detailed look at the three SATRE Models, from handling to technical measurements, hopefully something for everyone.

A few more details:

The videos show all three versions, but as the dimensions, shape and function are all identical, the galleries here show the standard Black Satre.

What’s in the box?:

As well as the knife in a bag with desiccant, there is a QC certificate, care instructions and warranty information.

A good look round the Sheath – Things to look out for here are:

The small and neat Kydex sheath arrives with a neck lanyard, nicely laced through the eye rivets that hold the Kydex halves together. These eye rivets allow for other mounts to be fitted such as the ULTICLIP. The sliding adjustment toggle also serves as a safety break-away. There is a drainage hole at the blade tip on one side.

A good look round the Knife – Things to look out for here are:

The Satre knife consists of a single piece of steel with no other material attached to it (ignoring the small cord lanyard). Despite that simple construction, Extrema Ratio have managed to pack it full of character and clearly identify it as one of their designs. The distinctive first finger grip is shaped into the tang along with the small cut out for weight reduction. Plenty of jimping is provided for various grips.

The Blade and Handle – Detailed Measurements:
For full details of the tests and measurements carried out and an explanation of the results, see the page – Knife Technical Testing – How It’s Done.

Structural Edge Testing:

Added in 2019 are results from the Edge On Up Structural Edge Tester (SET) to measure the resistance of a knife’s edge to rolling.

The key factors for the SET results are:
Series 1 Degradation – how much damage the edge suffers from one edge rolling cycle. The damage is represented by an increase in the BESS ‘C’ score. (Averages also shown for A and B)
Series 2 Degradation – how much damage the edge suffers from one further edge rolling cycle. (Averages also shown for A and B)
Degradation after strop – has the edge been permanently damaged/chipped or can it be recovered with stropping? A negative number means it actually improved from the starting figure, suggesting there may have already been some rolling of the edge before testing. (Averages also shown for A and B)

First a video of the testing process, then the table of results.

The following results do show a clear increased resistance to edge rolling for the S600 steel. In fact after two ‘series’ the edge has rolled only a similar amount to the N690 blades have after one ‘series’. This is a clearly stronger and more stable edge apex.
Often this extra resistance to edge rolling can be coupled with a more brittle edge, yet the S600 recovered better than the N690 after stropping. (If it was brittle the edge can chip when stropping and give a high BESS measurement.)
In this table, are the individual results for all three, plus a combined N690 set of totals at the bottom.
The figures in bold in the first column are averages for the single measurements.

The Factory edge up close – NEW FOR 2022!:

Followers of Tactical Reviews will know my views on factory edges, but to recap:

Anyone using a knife will need to sharpen it. That first factory edge is just like the first tank of fuel that a new car comes with (or first charge of the battery).
A good factory edge is a ‘nice to have’ but not a ‘make or break’ for a good knife, as you will be putting your own edge onto it soon enough.
The factory edge does however indicate the care a knife maker has put into the final finish.
It is for this reason Tactical Reviews measures factory edge sharpness and specifications, and includes this information in the detailed technical testing.

As a further look at the factory edge, this section has been added to include some high magnification photos of the factory edges.

In these galleries are each of the three versions with a before and after SET testing image. The edge rolling is just visible, but not easy to see.

Black N690

Satin N690

S600

What is it like to use?

It’s just one of those superbly useful knives. An easy size to carry and use, or keep as a backup. The size of the knife is similar to a medium sized folder, but being a fixed blade makes it super tough and a real working blade.
Here I’m showing it in an un-gloved hand (a hand which takes XL size gloves). It is compact, and doesn’t fill my hand, but the finger groove provides a really secure grip with the jimping (especially the thumb jimping) giving confidence.

With it being a compact blade and one without handle scales, the knife is capable of much harder work than you can comfortably manage with the bare blade tang in your hand. This design keeps it very low profile and really does make carrying and storing as a backup so much easier than a knife with wider handle.

Either in the pocket, or hanging around your neck the Satre is slim and unobtrusive. I can make this comment, not just based on one example but on all three – the Kydex action is spot on. The sloped shoulders of the sheath are just right to push on to release the knife, and the blade clicks out without a fight. This action is almost identical across all three and holds the blade securely without struggling to sheath or unsheathe it.

As seen in the SET testing section and video, the S600 steel is noticeably tougher. As with any higher hardness and higher wear resistance steel, you will notice the S600 is much more difficult to sharpen, and will need a suitable sharpener. This always makes for a dilemma for field use for me. As much as I love a longer lasting edge, if I might need to rely on one knife and might need to sharpen it in the field I would want to be able to sharpen it more easily and if required with natural stones rather than specialist sharpening equipment. This is just a consideration, as for many the longevity of the edge it already has may be more important than being able to sharpen in the field.

With a blade this thick (compared to its length) it doesn’t slice as well as a finer pocket knife blade would, but this blade is one you know won’t let you down if you need to work it hard. If you put one aside as an emergency backup blade, you know it is going to serve you well.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Pocket clip not supplied as standard.
Blade is relatively thick which affects slicing ability.
S600 steel much harder to sharpen (the cost of its higher hardness and wear resistance).

_______________________________________________
Things I like
_______________________________________________
Choice of blade steels.
S600 steel edge is measurably more stable.
Kydex sheath ‘action’ excellent.
Slim and low profile making carry easy.
Pocket or lanyard carry options.
Very secure grip.
Super strong design.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

As well as the Tactical Reviews Facebook Page, please consider visiting one of the following to start/join in any discussion.

BladeForums – Knife Reviews (US based Forum for Knife Discussion)

CandlePowerForums – Knife Reviews Section (Largest and Friendliest Flashlight Community Forum)

Knife Review: Pohl Force Tactical Eight and Nine

19 February, 2022

Based on the Pohl Force Mk-8 and Mk-9 knives designed by Dietmar Pohl for the movie Rambo Last Blood, Dietmar has now modified the designs of these two hero knives to create the Tactical Eight and Tactical Nine knives. With slightly reduced dimensions and using D2 steel, the Tactical Eight and Tactical Nine have been tweaked and optimised by Dietmar Pohl to make them more real-world usable. Join me in this review of the Tactical Eight and Nine for a detailed look at these ‘practical’ versions of the Rambo Last Blood movie knives.

Video Overview

This video is a detailed look at the Tactical Eight and Tactical Nine Models, from handling to technical measurements. Hopefully something for everyone and you should have a better idea if you should also pick up one or both.

The Tactical Eight’s Sheath:

The models on test here both use the kydex sheath option (a leather sheath version is available). For the Tactical Eight, a leg cord is provided. The sheath is constructed using eye rivets, and these allow for the belt holder to be attached with four screw bolts that you can remove and flip the sheath round for right/left handed use. A drainage hole is included at the tip of the knife on one side of the sheath. The belt hanger/loop is a very heavy webbing, heavy enough to be semi-rigid. The moulded lips of the sheath fully cover the front of the handle and guard.

A good look round the Tactical Eight – Things to look out for here are:

The Tactical Eight retains all of the identity of the Mk-8 it was based on. The handle scales extend over the sides of the finger guard making it wider and more comfortable to bear into. There is a hidden lanyard hole; the lanyard hole in the blade tang is concealed under the handle scales and a milled channel allows the cord to run under the G-10 and neatly to the rear. Large hollow bolts hold the handle scales in place and would also allow further locations to fit cords.
A large choil and thumb jimping allow for various grip options.

The Tactical Nine’s Sheath:

For the Tactical Nine, a leg strap with plastic clip buckle is provided. The leg strap also includes an elasticated section to provide better comfort. The elastic is added on the inside of the strap in such a way that should it fail, the strap itself is not compromised and would not break. The sheath is constructed using eye rivets, and these allow for the belt holder to be attached with four screw bolts that you can remove and flip the sheath round for right/left handed use. A drainage hole is included at the tip of the knife on one side of the sheath. The belt hanger/loop is a very heavy webbing, heavy enough to be semi-rigid. The moulded lips of the sheath fully cover the front of the handle and double guard.

A good look round the Tactical Nine – Things to look out for here are:

The Tactical Nine also retains all of the identity of the Mk-9 it was based on with highly distinctive curving blade (although without the sub-hilt). The handle scales extend over the sides of the double finger guard making it wider and more comfortable to bear into. There is a hidden lanyard hole; the lanyard hole in the blade tang is concealed under the handle scales and a milled channel allows the cord to run under the G-10 and neatly to the rear. Large hollow bolts hold the handle scales in place and would also allow further locations to fit cords. Handle scale texture is very pronounced on the Tactical Nine with a series of interlocking grooves giving a lot of grip.

The Blade and Handle – Detailed Measurements:
For full details of the tests and measurements carried out and an explanation of the results, see the page – Knife Technical Testing – How It’s Done.

The blade is made from D2 steel.

The Factory edge up close – NEW FOR 2022!:

Followers of Tactical Reviews will know my views on factory edges, but to recap:

Anyone using a knife will need to sharpen it. That first factory edge is just like the first tank of fuel that a new car comes with (or first charge of the battery).
A good factory edge is a ‘nice to have’ but not a ‘make or break’ for a good knife, as you will be putting your own edge onto it soon enough.
The factory edge does however indicate the care a knife maker has put into the final finish.
It is for this reason Tactical Reviews measures factory edge sharpness and specifications, and includes this information in the detailed technical testing.

As a further look at the factory edge, this section has been added to include some high magnification photos of the factory edges.

Tactical Eight

Tactical Nine

What is it like to use?

Starting this section with a couple of side-by-side comparisons of the Tactical Eight and Nine. In this first photo, the knives are unsheathed and their different scale and ‘weight’ (both visually and in amount of steel). The Tactical Eight being the much slimmer and more compact blade, and the Nine having a bigger presence and striking power.

Once encased in kydex the difference in size is much less apparent; yes the Nine is a larger overall package, but not as much as you might think.

Onto some observations about the handling; with its single guard, the Tactical Eight allows the thumb-forward type of grip and has a thumb ramp with deep jimping for excellent grip. The large choil allows for a choked grip to be used for fine control. However, when tightening this type of grip the heel of the edge can easily cut into your finger, so beware of this.
The handle scales are smooth and shaped well. The spine of the handle is wide and allows a lot of pressure to be applied comfortably, combined with the well shaped finger groove that gives excellent stability.

For the Tactical Nine the grip is quite a different prospect to the Eight. To start with the double guard blocks the use of a forward thumb grip, but being a bigger knife and more of a chopper, this doesn’t feel out of place.
With the ‘practical’ version not having the sub-hilt of the Mk-9, it makes the knife more general purpose and the pronounced finger groove still provides a very stable hold.
With a larger choil than the Eight, the Nine’s choked grip is safer, although you always need to be careful with this type of hold. The double guard also pulls back the choked grip slightly keeping your finger away from the cutting edge.

I do need to mention something I’ve noted for both the Tactical Eight and Nine when it comes to re-sheathing the knives that can catch you out, and you find the striker digging into you hand.

With the use of kydex for the sheaths on test here, the mouth of the kydex sheath envelops the front of the handle and finger guard. To be able to push the knife fully into the sheath you need to grip the handle up and away from the guard. What then happens is that you end up with the striker pressing into your hand as you push the knife home; not very comfortable. The kydex is also quite a firm fit, so requires a reasonable amount of force to click the knife into place, force which translates into the striker digging into your hand sometimes pretty hard.
The leather sheath versions would not have this issue.

In just some of the cutting tests, I was using completely dry and seasoned wood, so not softer green wood. With the Tactical Nine having a serious chopping ability I took it to some fully dry pallet wood, which it destroyed with ease. In dry wood there is a tendency to bind as the depth of cut it is capable of grips the blade. Once you have a few clearance cuts the chips just fly.

The Tactical Eight is not really a chopper, you would need to baton with it for wood processing. It is a great utility knife and very happy at general purpose tasks with the point a good angle for piercing.

If you like the style of the Rambo Last Blood knives and want a hard use, practical, version then Tactical Eight and Nine are the knives that deliver on this. Unmistakably related to the Mk-8 and Mk-9, these practical versions are more usable and made to be put to work.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Striker has a tendency to dig into the hand when sheathing the knives.
D2 steel – for a working knife I prefer higher stain resistance.
Noisy kydex click on re-sheathing.
Having to take the handle scales off to fit/remove the lanyard.

_______________________________________________
Things I like
_______________________________________________
Distinct and iconic design.
Sizing optimised for real use.
High quality fit and finish.
Complimentary designs with different strengths.
Choice of kydex or leather sheaths.
Ambidextrous sheath (remove/refit belt hanger).
Built for hard use.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

As well as the Tactical Reviews Facebook Page, please consider visiting one of the following to start/join in any discussion.

BladeForums – Knife Reviews (US based Forum for Knife Discussion)

CandlePowerForums – Knife Reviews Section (Largest and Friendliest Flashlight Community Forum)

Knife Review: Extrema Ratio Panthera

12 February, 2022

The Extrema Ratio Panthera is a further development of their T-Razor (that was based on the traditional straight razor) and maintains all the characteristics of the T-Razor, but with a new wharncliffe blade shape and curving claw-like appearance. In this Extrema Ratio Panthera review, I cover all the technical specifications, detailed galleries to show you all the details, a video overview and demonstration of the opening method.

Video Overview

This video is a detailed look at the Extrema Ratio Panthera, from handling to technical measurements. Hopefully something for everyone and you should have a better idea if you should also pick one up.

The packaging:

A good look round the Panthera – Enjoy all the details:

The Blade and Handle – Detailed Measurements:
For full details of the tests and measurements carried out and an explanation of the results, see the page – Knife Technical Testing – How It’s Done.

The blade is made from N690 steel.

The Factory edge up close – NEW FOR 2022!:

Followers of Tactical Reviews will know my views on factory edges, but to recap:

Anyone using a knife will need to sharpen it. That first factory edge is just like the first tank of fuel that a new car comes with (or first charge of the battery).
A good factory edge is a ‘nice to have’ but not a ‘make or break’ for a good knife, as you will be putting your own edge onto it soon enough.
The factory edge does however indicate the care a knife maker has put into the final finish.
It is for this reason Tactical Reviews measures factory edge sharpness and specifications, and includes this information in the detailed technical testing.

As a further look at the factory edge, this section has been added to include some high magnification photos of the factory edges.

What is it like to use?

One of the distinctive features of the Panthera (and its sibling the T-Razor) is the extended tang used as the blade opening lever. This is the same style as with a friction folder (which being of Roman design actually predates the straight razor by around 1600 years), and allows both opening of the blade, and holding it in the open position. The Panthera also has a liner lock, so the tang is not used to keep the blade open, only to open it in the first place.

Of course the other striking design feature is the curved claw-like blade used in the Panthera, which makes it stand out.

It’s a big knife. I take XL size gloves and the Panthera is a real handful, just take a look at this set of photos.

The opening method is shown a few times in the video at the start of this review, but here are a set of photos to step through opening the Panthera using the T-Razor speed style of opening.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
No pocket clip.
No case or holster (in lieu of a clip).
Tang opening doesn’t suit everyone.
Lock release is a bit sharp to push on.

_______________________________________________
Things I like
_______________________________________________
Striking and impressive knife.
Curved blade can increase cutting power for many tasks.
Very comfortable grip.
Blade opens quickly (once you are practiced).
Long handle allows for multiple grip positions.
Matte anodised handle finish feels great.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

As well as the Tactical Reviews Facebook Page, please consider visiting one of the following to start/join in any discussion.

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Knife Review: lionSTEEL Myto

12 February, 2022

The lionSTEEL Myto is a superb EDC knife designed by Mik Molletta, with Titanium handles, M390 blade and a removable flipper tab. The version on test has a black stonewashed finish on the handles and blade. Join me in this review of the lionSTEEL Myto for a really detailed look over the design and technical specifications of this excellent EDC knife.

Video Overview

This video is a detailed look at the Myto, from handling to technical measurements. Hopefully something for everyone and you should have a better idea how the knife handles.

A few more details:

What’s in the box?:
Arriving on lionSTEEL’s ‘recyclable’ packaging, this is how it arrives.

A good look round the Myto – Things to look out for here are:
Overall fit and finish is flawless, even with the unforgiving close up photos. As you go through the gallery you will see the details of form (such as round the lock bar spring, or pocket clip, or lanyard hole, or flipper tab etc.) One detail you have to look closely for is the hidden stop pin which is just visible in one of the images. This version in the stonewash finish gives it a nice soft look, ready to be put to use.

The Blade and Handle – Detailed Measurements:
For full details of the tests and measurements carried out and an explanation of the results, see the page – Knife Technical Testing – How It’s Done.

The blade is made from M390 steel.

The Factory edge up close – NEW FOR 2022!:

Followers of Tactical Reviews will know my views on factory edges, but to recap:

Anyone using a knife will need to sharpen it. That first factory edge is just like the first tank of fuel that a new car comes with (or first charge of the battery).
A good factory edge is a ‘nice to have’ but not a ‘make or break’ for a good knife, as you will be putting your own edge onto it soon enough.
The factory edge does however indicate the care a knife maker has put into the final finish.
It is for this reason Tactical Reviews measures factory edge sharpness and specifications, and includes this information in the detailed technical testing.

As a further look at the factory edge, this section has been added to include some high magnification photos of the factory edges.

Though not the best BESS sharpness measurements, this close up of the edge shows the texturing in the edge that makes it really cut well.

What is it like to use?

Inobtrusive and easy to carry are a couple of first impressions which make a great EDC knife. One thing I wasn’t so sure about when I first picked up the Myto was the solid pocket clip; it seemed too stiff and like it would be difficult to use. I’ve been proven completely wrong on that as actually the clip eases over the edge of a pocket without a struggle, but then is a bit harder to take off, so making it secure.

With the blade on bearings, the flip open is super slick, as you can see in the video. It really doesn’t take any effort at all to flip to the locked position and you can develop a nice slow lazy flip with the blade reliably locking, or really snap it out. The detent if firm without being harsh so you never have to fight with it.

It’s not the first lionSTEEL with removable flipper tab, and you might question the benefits of such a feature. Consider the pros and cons for a flipper. As pros, you might have fast deployment, and built-in finger guard. As cons, one of the most frequent complaints it the messy tab sticking out and the action appearing like a flick knife and in many places or situations causing distress to non-knife people.
So if you want a sleeker looking knife, and one which requires a steady and inoffensive two-handed opening, you undo one screw and off comes the flipper tab. You can then change your mind, just want to mix it up again, or go fidget flipping and on goes the tab.
I did find the tab itself was not perfectly in line due to the removable system, and in trying to get it lined up better I over torqued the supplied tool and started to twist off the end of the torque driver, so beware of this when refitting the tab.
If you have the facility you will likely use it, giving you two slightly different knives in one. I have several folders I wish had the same feature.

In terms of size, the Myto fits in very well in the 3/3.5″ blade length category ideal for general purpose every day tasks. The strong lock and flipper tab/finger guard allow you to work hard with this knife.

I take an XL size glove, and in my hand I can take a full grip and the handle is large enough so that my hand doesn’t have the corners of the butt digging in, instead just extending slightly out of my hand. At the front, the flipper tab acting as a finger guard, keeps the position of the knife safely under control. Just right.

lionSTEEL’s superb engineering stands out the moment you pick up the Myto with absolutely nothing seeming out of place or ‘could be better’, instead everything just being right. Refined, easy to carry and strong blade with great slicing power.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Flipper tab is slightly wonky due to removable system.
Easy to over-torque the supplied tool.
Solid clip feels very stiff.
Glass breaker is scratchy.

_______________________________________________
Things I like
_______________________________________________
Quality engineering.
M390 blade steel performance.
Excellent EDC size of knife.
‘ReF’ Removable Flipper tab system.
Elegant and refined design.
Blade geometry makes for a great slicer.
Solid and slick blade action.
Clip can be fitted for left or right handed use.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

As well as the Tactical Reviews Facebook Page, please consider visiting one of the following to start/join in any discussion.

BladeForums – Knife Reviews (US based Forum for Knife Discussion)

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Light Review: Fenix PD36 TAC

6 February, 2022

In this review of the Fenix PD36 TAC, I’m going to be taking a detailed look at the details, comparing its performance to the specifications, checking out the beam and how usable it is. The review includes video content as well as photo galleries and technical testing results.
Join me in this look over the Fenix PD36 TAC Flashlight / Torch, a light built around the increasingly common larger 21700 cell (compared to the typical 18650 previously used). This has a specialised tail-cap with physical lockout, dedicated ‘Tactical’ setting, and a normal ‘duty’ multi-mode setting.
Let’s get to really know the Fenix PD36 TAC!

Video Overview

Starting out with the video overview of the PD36 TAC.

What is in the box?:

Unpacking the PD36 TAC and its accessories.

Taking a more detailed look at the holster:

Before moving onto the PD36 TAC itself, this is a run round the supplied belt holster.

A good look round the PD36 TAC – Things to look out for here are:
In the gallery are details of the design, the clip, bezel, contacts, threads, battery, and more…

The beam

Please be careful not to judge tint based on images you see on a computer screen. Unless properly calibrated, the screen itself will change the perceived tint.

The indoor beamshot is intended to give an idea of the beam shape/quality rather than tint. All beamshots are taken using daylight white balance. The woodwork (stairs and skirting) are painted Farrow & Ball “Off-White”, and the walls are a light sandy colour called ‘String’ again by Farrow & Ball. I don’t actually have a ‘white wall’ in the house to use for this, and my wife won’t have one!

Below are the indoor and outdoor beamshots giving you an idea of throw and spill. The PD36 TAC has a great balanced beam with great area lighting.

Batteries and output:

The PD36 TAC runs on the supplied 21700 USB-C rechargeable cell.

Please note, all quoted lumen figures are from a DIY integrating sphere, and according to ANSI standards. Although every effort is made to give as accurate a result as possible, they should be taken as an estimate only. The results can be used to compare outputs in this review and others I have published.

Measured output is a great match for the specifications.

For the runtime graphs, I have included runs for Turbo and Tactical, which have different starting outputs. Also included is a graph of the first six minutes to better show the difference between Turbo and Tactical modes.

The PD36 TAC in use
The general change towards using 21700 cells is great for two reasons; better runtime/output and a comfortable size to hold. If you were completely unaware of the reason the battery tube was larger than previous generations that run on 18650, you would just be thinking the PD36 TAC is nice and comfortable to hold. The fact that it now houses a 21700 cell with that 5000mAh capacity is a further bonus to the comfort in the hand. Win win at this point.

With that greater capacity of the 21700 cell, this compact tactical light can pump out a huge 3000lm. Go back and look at the runtime graphs to see how impressively the PD36 TAC keeps its output going. The output limitation is more down to thermal capacity for longer runs.

This is the first of this style of Fenix tactical tail-cap I have been able to try. It has three functional modes. One is a simple and solid physical lockout. Line the selector ring up with the padlock, and the button does not move.

The selector ring certainly feels secure enough in its positioning that you won’t be accidentally going between locked and unlocked by accident. You pre-select the type of use you want and leave it there. Bear in mind, you can also use this to lock the PD36 TAC on. If you first turn it on to a mode you want and then rotate the selector ring to the padlock, you can’t turn it off again.

Being designed as a ‘Tactical’ light, most users will likely keep it in ‘Tactical’ mode – instant 2000lm output with momentary or latched action. Half press the tail-switch for momentary output, complete the press to latch it on (or just go for the full press to start with). Holding the switch fully in for about 1s and you enter strobe mode.

Move the selector round to the ‘Duty’ mode and you have access to five different output levels. Starting on ‘eco’ the first time you use it, but after that the last used level is remembered. Changing modes requires a half press – this can either be a half press from off and then cycle through modes before latching on, or a half press after turning the PD36 TAC on with a full press, the half presses then cycling through modes. Personally I would have preferred an automatic reset to eco after a few seconds being off as after not using it for a period of time, you won’t know if you had eco or turbo set, and this could be quite a shock.

The Fenix PD36 TAC is a purposeful lighting tool, and can instantly be reconfigured as either a dedicated ‘Tactical’ light or into a multi-mode ‘Duty’ light to fit with your needs.

Review Summary
The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
‘Duty’ mode last used level remembered (so could be on eco or turbo).
Tail-switch has a relatively stiff action.
No grip ring provided.

_______________________________________________
Things I like
_______________________________________________
Great area lighting beam profile.
Nearly 3000lm from a compact light.
Three function tail-cap selector ring.
Dedicated ‘Tactical’ mode.
Proper physical lockout.
Uses a large capacity 21700 cell.
Supplied cell has built-in USB-C charging.
Very usable holster supplied.

Knife Review: Spyderco Respect – an American Bowie

31 January, 2022

With the Spyderco Respect, Sal Glesser is paying tribute to the traditional American Bowie knife. The design of the Respect dates back decades, but Sal didn’t have the opportunity to make it a reality until a couple of years ago. In this review I’m very excited to have the opportunity to take a very detailed look over this mighty bowie, and see how it really is to use.

Video Overview

In this video of the Respect, I’ll show you how it arrives, how it compares to some other well known bowie knives, and run through the Tactical Reviews technical specification measurements.
This is some of the pre-use processes I go through for a new test sample before I can put a knife through its paces, so doesn’t include the in-use aspects beyond first impressions.

A few more details:

What’s in the box?:
Or should I say bag? – This is the unpacking of the Respect, and differs from the typical Spyderco as it does not come in a box.

A good look round the Respect’s sheath – Things to look out for here are:
Starting with the leather sheath that comes with the Respect. Simple and functional with a classic strap and stud fastening.

A good look round the Respect – Things to look out for here are:
A mighty blade, and a superb level of fit and finish. Take in the detailed close-ups and enjoy.

A good look round the Respect’s handle – Things to look out for here are:
A fully concealed, full tang, with the two G10 slabs secured with four bolts.

The Blade and Handle – Detailed Measurements:
For full details of the tests and measurements carried out and an explanation of the results, see the page – Knife Technical Testing – How It’s Done.

The blade is made from CPM 154 steel.

The Factory edge up close – NEW FOR 2022!:

Followers of Tactical Reviews will know my views on factory edges, but to recap:

Anyone using a knife will need to sharpen it. That first factory edge is just like the first tank of fuel that a new car comes with (or first charge of the battery).
A good factory edge is a ‘nice to have’ but not a ‘make or break’ for a good knife, as you will be putting your own edge onto it soon enough.
The factory edge does however indicate the care a knife maker has put into the final finish.
It is for this reason Tactical Reviews measures factory edge sharpness and specifications, and includes this information in the detailed technical testing.

As a further look at the factory edge, this section has been added to include some high magnification photos of the factory edges.

The Respect’s factory edge shows an aggressive micro-serration, and slices well beyond the sharpness measurements might indicate in the technical testing table.

What is it like to use?

It’s a mighty blade! So the first impression is that this is a big knife, big blade and big handle. I take XL size gloves, so you can see here the handle is generously sized, perfectly big enough to use with heavy gloves on and stay comfortable.
The large choil easily allowing a finger to be placed for a choked up hold when carrying out finer cutting tasks.
A deep hook at the butt means even if you have a bit of grip slippage, the hook will stop you losing grip. That hook also allows for a low grip for greater leverage in heavy chopping.

Staying on the subject of grip, though the handle scales are relatively smooth, the four bolt holes actually (intentionally or not) give a lot of extra purchase. The holes have a sharp edge to them so when gripping your hands press into them and grab.

CPM 154 – oh yes, one of my all time favourites and this knife is one big piece of CPM 154. I have to drop in another name here, Leatherman, and the reason being that in Leatherman pliers with replaceable wire cutters, the cutter is made of CPM 154, chosen as the idea tool steel to cut hardened steel wire! And here it is as the blade steel used for the Respect – Yes! (Ok a bit of steel bias there, but I like it.)

This knife has a spine measuring 7.5mm, which is massive! Yet with a full flat grind 38mm long, the blade geometry is still a strong slicer – it does ultimately still need to part the material past that 7.5mm spine, but for such a strong blade it is still impressively good at slicing.

As a chopper it is very capable. In the photos below all the wood is well seasoned, even the small branch shown. In dry timber the blade can bind a bit when cutting in deep, but once you get a few relief cuts in the wood chips fly! Grip is perfectly secure when chopping and the grip hook definitely helps.
There is a also a photo of a single chop into an industrial cardboard tube (5mm dense card walls) which it went through with ease.

The Respect is not for the faint hearted; when you carry this knife, you mean to carry a knife. It is imposing, impressive and a powerful cutter.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Needing to choke-up on the blade for fine work.
Belt loop position makes the knife ride high.
The blade spine is almost too thick.

_______________________________________________
Things I like
_______________________________________________
Large choil makes sharpening to the very heel easy.
Comfortable handle, large enough to wear heavy gloves.
Traditional look in modern high performance materials.
Quality leather sheath.
CPM 154 steel.
Full Flat grind.
A really ‘purposeful’ design with presence.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

As well as the Tactical Reviews Facebook Page, please consider visiting one of the following to start/join in any discussion.

BladeForums – Knife Reviews (US based Forum for Knife Discussion)

CandlePowerForums – Knife Reviews Section (Largest and Friendliest Flashlight Community Forum)

Classic Knife Review: Spyderco Police and Military Models

10 January, 2022

We all know them, we might not all have them. These two Spyderco classics (Police and Military) have stood the test of time and use, and are still current models – for good reason.
I refer to them as ‘Classics’ and Spyderco calls the Police model a ‘Signature’ model and the Military a ‘USA Made’ and/or ‘Save and Serve’ model. Both really qualify as a classic in my opinion and are worthy of being in your pocket.

Video Overview

This video is a detailed look at the Police and Military Models, from handling to technical measurements. Hopefully something for everyone and you should have a better idea if you should also pick up one or both.

A good look round the Police Model – Things to look out for here are:
Being of full stainless steel construction, and having brushed steel handles, to ensure you get it in new condition, the handle scales come with protectors fitted that you need to peel off.
The Police model has drilled and tapped holes in all four possible clip positions, so you can decide the very best clip position for your needs (personally I changed this to tip-up and right handed).
Being a long standing model it unsurprisingly uses a back lock.
With a rivet type of blade pivot, there is no adjustment or user servicing possible. The pivot rivet finishing is excellent and completely invisible.
This example is the part serrated version, but it also comes in a fully serrated or full plain edge blade.

A good look round the Military Model – Things to look out for here are:
Immediately unmistakably Spyderco, with the G10 handle scales, pocket clip and opening hole, the Military is a good sized folder.
Unlike the Police model, the Military can be taken apart, with the G10 handle scales bolted together and a pivot bolt. Also unlike the Police model, the Military has only the one clip position (tip-down right handed).
Recessed into the G10 handles are minimal steel liners and the Military uses a liner lock. Just to drive home that point about ‘minimal’ steel liners, this is what allows for the light weight yet still strong construction. The liner on the non-lock side just goes from handle bolt to handle bolt to the pivot (supporting the stop pin as well). The other partial liner is larger as it includes the lock bar.

The Blade and Handle – Detailed Measurements:
For full details of the tests and measurements carried out and an explanation of the results, see the page – Knife Technical Testing – How It’s Done.

An extra detail not in this table is the edge angle of the serration on the Police Model. One of the reasons the Spyderco serrations cut so well is that they are chisel grind (so only one side is sharpened) making the edge angle very fine – in this case just 17 degrees total inclusive edge angle (0 degrees one side and 17 the other).

The Factory edge up close – NEW FOR 2022!:

Followers of Tactical Reviews will know my views on factory edges, but to recap:

Anyone using a knife will need to sharpen it. That first factory edge is just like the first tank of fuel that a new car comes with (or first charge of the battery).
A good factory edge is a ‘nice to have’ but not a ‘make or break’ for a good knife, as you will be putting your own edge onto it soon enough.
The factory edge does however indicate the care a knife maker has put into the final finish.
It is for this reason Tactical Reviews measures factory edge sharpness and specifications, and includes this information in the detailed technical testing.

As a further look at the factory edge, this section has been added to include some high magnification photos of the factory edges.

In this case the serrated part of the Police model (the plain edge part was sharpened before the imaging device was ready) and the edge of the Military model.

These two edges are outstanding and will the standard by which others are judged!

What is it like to use?

Before going further with using them, a quick side by side (and one on top of the other) size and form-factor comparison.

Moving onto the two knives in the hand, and despite being very similar in size, they do feel very different when you hold them. The G10 handles of the Military make for a different weight distribution plus fill the hand more. Of the two, the Military is definitely the more comfortable and easy to have a very secure grip of. Conversely though this makes it harder to carry, taking up more pocket space. The Police model is very slim and even at the size it is, slips into your pocket so easily.

In terms of carry, the Police model also gives you all four possible clip positions (or five if you count – ‘no clip’) so there isn’t any limitation of the clip position. Although that said, this current version is missing a lanyard hole if you wanted one of these.
For my own purposes, I have moved the clip from the factory position to tip-up and right handed.

Of course for edge maintenance, especially considering the serrated edge on the Police model, the Spyderco Tri-Angle Sharp Maker (also pictured above) is ideal and easy to use.

Both the Police and Military models do have a very pointy blade tip, the Police being the slightly pointier of the two. It makes them very aggressive at penetrating, and for anyone more used to a drop point or other less eager blade tip might find them unwieldy or difficult to control. You certainly need to use great care where depth of cut matters, and the long blade can make this control all the more difficult. You will get used to it, but it does need care and consideration when wielding these super capable blades.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Military –
single clip position.
clip/G10 abrasive on pocket edge.

Police –
no lanyard hole.
slippery when wet.

_______________________________________________
Things I like
_______________________________________________
Military –
Very light for its size.
Very ‘eager’ blade (full flat grind and sharp point).
Liner lock makes for very smooth opening.
G10 handles have excellent grip.
Spyderco high quality fit and finish
One of the best factory edges I have ever seen!

Police –
Slim design makes it easy to carry.
Pocket clip has four possible positions.
Spyderco serrations incredibly sharp.
Three options for blade (plain, serrated, part-serrated).

Hope to see you at IWA 2022 soon!

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

As well as the Tactical Reviews Facebook Page, please consider visiting one of the following to start/join in any discussion.

BladeForums – Knife Reviews (US based Forum for Knife Discussion)

CandlePowerForums – Knife Reviews Section (Largest and Friendliest Flashlight Community Forum)

Light Review: Cyansky H3 and H5 (built-in Red/Green Filter)

26 October, 2021

Cyansky have come up with a novel way to solve the problem of having multiple colours of light in a single device without many of the compromises multi-LED or LED swapping lights might have. Most people will have come across, or used, colour filters to change the output of a white beam, but these are easily forgotten or lost. In the Cyansky H3 and H5 hunting models, glass filters are completely contained within the head of the light and the patented mechanism lets you drop a red or green filter in front of the XHP35 HI LED with a simple twist of the control ring – nothing else needed. The H3 and H5 use the increasingly popular 21700 cell to provide more power and runtime, but can run on an 18650 or 2 CR123s for added versatility.
Join me in the detailed examination of these two hunting lights and see how they perform.

Video Overview

Starting with a look over these light in a short video.

This is what arrived from Cyansky –

A good look round the H3 – Things to look out for here are:
As you may have already seen in the video, first up are the contents of the box. The H3 has a belt hanger (rather than full holster) providing a head-up belt carry option. Moving round the H3 and we get onto the mode switch and filter control ring at the base of the head. The tail-switch is semi-recessed, so allowing for tail standing, but with cutouts to ease access to the switch. The stainless bezel ring is wide and well finished. And then a first look at one of the filters.
The H3 comes with a 21700 with built-in USB-C charging. As it arrives there is a plastic insulator to prevent accidental discharge in the light.

A good look round the H5 – Things to look out for here are:
With the H5, the details are the same as for the H3, so I won’t repeat them, the difference is in the much larger head and reflector to give extra beam range.
One small observation which doesn’t affect function at all is that the mode switch has room to move about and twist, so might look a little ‘off’. This doesn’t affect function at all, and is only mentioned in case you see the button looking slightly twisted (this is the same for both models).

The Remote Switch and scope mount:
The supplied remote switch replaces the tail-cap of either the H3 or H5. The remote switches are in a rail-mount unit, and you have a momentary only switch, plus a forward clicky latching switch much like the original tail switch.
The scope mount is basic and easy to use, but I would not use it for heavy duty setups. For smaller calibers and for quick tool-less mounting it works well, and has enough stand off for the H3 or H5.

The Cyansky special feature – built-in colour filters:
Now for a set of images to just show the built-in filter change. I’ve used the H3 here as with the smaller head it is easier to see the filter better than with the H5. First no filter – with the filter holder just having a little bit of extra reflector round the base of the LED. Then part of the way to dropping a filter in place (this is NOT how you use it, just showing the filter holder disk rotating). Finally with the red and green glass filters shown in place over the LED.

The beam

Please be careful not to judge tint based on images you see on a computer screen. Unless properly calibrated, the screen itself will change the perceived tint.

The indoor beamshot is intended to give an idea of the beam shape/quality rather than tint. All beamshots are taken using daylight white balance. The woodwork (stairs and skirting) are painted Farrow & Ball “Off-White”, and the walls are a light sandy colour called ‘String’ again by Farrow & Ball. I don’t actually have a ‘white wall’ in the house to use for this, and my wife won’t have one!

Stepping through these beamshots we have the H3 white beam, then H5 white beam, and as you go through the gallery it is H3 then H5 to show a direct comparison on each colour indoors and out.

Batteries and output:

The two models runs on 21700 cells. Logging the built-in USB-C charging gives these traces for the cell provided with each light.

Please note, all quoted lumen figures are from a DIY integrating sphere, and according to ANSI standards. Although every effort is made to give as accurate a result as possible, they should be taken as an estimate only. The results can be used to compare outputs in this review and others I have published.

The Output table also includes the manufacturer specified lumens for comparison.

For the runtime trace, only the highest and lowest output colours were used (white and red) and all traces were run on maximum power.

The H3 and H5 in use

The first aspect to mention is how the H3 and H5 themselves compare. Actually this photo doesn’t show it accurately, but from the control ring to tail-cap, the H3 and H5 are identical. Not a surprise as they run on the same cell, have the some output specifications (apart from beam range), and have the same controls. So when holding them, they are the same for grip and controls.

With the larger head, and larger reflector, the H5 does have the edge in overall output, and it focuses the beam more for a longer reach. This gallery shows some longer distant photos on a golf course driving range. The H3 and H5 beams compared directly. The focus of the H5 is clearly visible at these longer ranges.

Using a zoom rifle scope this gallery has a set of images at the same exposure to show the gain in distance the H5 has over the H3. The magnification is set to 8x in this first gallery.
Important to note is that the distance markers the scope is aimed at are 250 yards, and that the H3 is still usable on white output, but struggles a bit at this range on the coloured output.
Also bear in mind that I am using a .22lr on this course, so 250 yards it beyond the limit I would take a shot.

Now taking the scope to 16x magnification. Although all the images here are the same exposure, I have had to use a longer exposure than for the 8x magnification. At this range and magnification the H3 was pushed too far. the H5 was still working well.
This was to test the limits for range and scope magnification. (At 32x magnification I could not get any photos to come out.)

All of the above proves the H3 and H5 work well on or off a rifle, and the coloured output filters, being built-in, are so convenient, allowing for changes of output colour with nothing but a turn of the control ring.
Although I normally use dedicated coloured lights (so the LED is red or green) due to being most efficient and having the best quality of beam, it means I need to carry entire replacement lights to change colour. There are also LED swapping lights on the market but these compromise the thermal path as the heat sink has to move. With the H3 and H5, the single LED has an optimal thermal path for heat sinking.
Using filters on any light does reduce efficiency as you are ‘wasting’ up to 93% of the actual output (in the case of the red 1306lm down to 94lm). This is the cost of the convenience of instant access to red green or white light.

As long as you have a suitable rail to mount the remote switch on, this switch works really well. By including both a dedicated momentary switch, and a latching forward-clicky switch that gives you momentary and permanent on options, you have all you might want. If you don’t have a rail in the right place, this switch won’t really work for you, so consider this before choosing.

If you normally use a dedicated coloured light, then do you switch to the H3 and H5? – if you ever have a need to change between red, white, and green, then the all-in-one solution these Cyansky lights give you allows you to stop carrying additional separate lights.
If you use, or would consider using colour filters, then the H3 and H5 are no-brainers. Why would you want external filters you can lose, that are often a plastic filter material, when you can have self-contained selectable glass filters?

Review Summary
The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

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What doesn’t work so well for me
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Using filters is not efficient compared to dedicated coloured lights.
The mode button can look a little twisted as it has a little too much room to move.
Basic belt hanger provided.

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Things I like
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Glass filters are used.
Simple turn of the control ring to change filter colour.
21700 power (plus can use 18650 or CR123 if needed).
Supplied 21700 is USB-C chargeable.
Good choice of beam pattern between the H3 and longer reaching H5.

You can find the Official Cyansky Store Here, if you would like to get hold of these lights. (I have no affiliation and get no reward for you buying from this link).