Tag: pocket knife

Knife Review: Sandrin Knives Torino

17 February, 2024

A Tungsten Carbide bladed knife! The Torino from Sandrin Knives features a blade made from Polyhedral Tungsten Carbide (PTC), a flexible grade of tungsten carbide that has superb edge retention and measures HRC 71 on the Rockwell scale.
The Torino’s blade also has a unique ‘raw carbide’ finish, giving it its striking appearance. Pivoting on ceramic ball bearings provides a super smooth opening and closing action, with the blade held securely open by a Recoil Lock mechanism.
Join me in this review of the Sandrin knives Torino for a thorough look at the knife.

Review Video

A thorough look at the Sandrin Knives Torino with the Tactical Reviews detailed technical specifications and close up view over the entire knife.

A few more details:

A good look round the Torino – Things to look out for here are:
Using red, high visibility, milled G10 for the handles and a reverse-skeletonised design to reduce weight gives a very distinctive look to the Torino (even before you see the blade).
A black PVD coated pocket clip can be fitted on either side or removed completely.
The Polyhedral Tungsten Carbide blade’s raw TC finish adds further to the distinctiveness of this knife combined with the fact the Torino’s blade is super slim at a maximum of only 1.2mm thick!
Sandrin Knives have used a Recoil Lock for the Torino with a sliding back spacer lock lever on the back of the handle.
PTC, being super-hard at HRC 71, gives the Torino’s blade a very different look on the primary and edge bevel grinds.

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 Polyhedral Tungsten Carbide.

Explained by the Maker:

With the unique material used for this knife blade, I’m including the manufacturer’s own description here for ease of reference.

An advancement in the science of blade materials, Sandrin knives are crafted from our patented Polyhedral Tungsten Carbide (PTC), a flexible grade of tungsten carbide that outperforms steel in edge retention. Measuring HRC 71 on the Rockwell scale of hardness, Torino retains its razor-sharp edge far beyond steel knives. We call this StaySharp Technology™. New for Torino is the blade’s raw carbide finish – its striking appearance is achieved by grinding the PTC with fine diamonds. Unlike steel, the Torino blade is completely rustproof making it suitable for both fresh and saltwater conditions. The blade’s thumb ramp features carefully executed jimping, while the rest of the spine and finger choil is chamfered for comfort.

Torino’s ceramic ball bearing action provides for a smooth opening and closing experience. A robust thumb stud provides for one handed blade deployment. But what really makes the Torino a modern marvel is a completely redesigned mechanism we call the Recoil Lock. This ingenious locking system is a gift to the knife community by knife wunderkind Snecx Tan, who refers to it as his PowerLock. Thank you, Snecx, for this remarkable innovation. The beauty of Tan’s recoil lock is the simple yet efficient design. The ambidextrous action delivers positive force (grip) to secure the blade in its rock-solid open position. Closing the knife is accomplished by sliding the backspacer to the rear, eliminating accidental blade unlock.

High-visibility red G-10 handles provide for quick acquisition in emergency situations. Stylized pockets serve to both reduce weight and add tactile feel for positive grip engagement. A reversible titanium pocket clip enables right- or left-hand carry and features our Fibonacci hole sequence design, a distinctive mathematical trademark of Sandrin Knives.

At only 2.29 ounces, Torino is so lightweight it practically disappears in your pocket. And, with a blade length of 2.95 inches, it’s also legal to carry in most jurisdictions.

The Factory edge up close:

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 magnified images of the edge show the Torino’s blade’s different look. They also show what appears to be a micro-serration from the grinding process, which aids the cutting ability of this special material.

What is it like to use?
One of the most noticeable features of the Sandrin Knives Torino when you use it is the super-slim, super-slicey blade. The sharpness measurements for the factory edge, are in this case more important than most knives, as I suspect the PTC blade may be difficult to sharpen, and will almost certainly want diamond sharpeners.
Sandrin have supplied the Torino super sharp with the very impressive average BESS measurement of 165. I tend to sharpen a knife to less than 200 BESS, so this is sharper than my normal target sharpness.
Actually with it being so so hard, I’ve not yet worn the edge enough to want to sharpen it, so this aspect of using the PTC blade is to come later.
It certainly is lightweight and easy to carry.
The jimping on the spine of the blade is useful, but with the blade being only 1.2mm thick, I find it quickly becomes uncomfortable to apply a lot of force directly onto the blade spine.
With the forward placed finger groove, choking up on the blade is natural and makes finer work really accurate.
For me, the only aspect that lets the Torino down somewhat is the spring pressure on the recoil lock combined with the finish on the lock lever – together these make unlocking with the pad of your thumb uncomfortable and not entirely reliable. I find I tend to have to curl my finger or thumb over and use my nail to get sufficient purchase to release the lock. If the lock bar protruded a little more and the spring pressure was slightly less, I think this would come together nicely.
However, that said, the recoil lock does allow the Torino to remain slim and gives a reliable lock-up.

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
_______________________________________________
High spring force on the recoil lock.
Lock lever too low profile.

_______________________________________________
Things I like
_______________________________________________
High-tech blade material – Polyhedral Tungsten Carbide
Fantastic factory edge with BESS of 165
Incredibly long lasting sharpness.
Blade is only 1.2mm thick!
Lightweight design.
Reverse-skeletonised G10 handle.
Low profile recoil lock.
Slick blade movement on ceramic bearings.
Double-sided thumb studs.
Ambidextrous deep-carry titanium pocket clip.

Knife Review: Fällkniven PXL Folding Knife

11 June, 2023

In this review of the Fällkniven PXL (‘bm’ version – black micarta) folding knife, we take a very close look all over this beautiful liner lock.
Direct from the Fällkniven designer himself, Peter Hjortberger, is the statement that the PXL is the largest folder he will ever design; if you need a larger knife, then a fixed blade becomes the better choice. Fällkniven knives are practical tools, designed to work hard and efficiently, with the design intent firmly on performance and practicality.
The PXL now has an Elmax steel blade and comes with either black micarta or Elforyn (an imitation Ivory) handle scales.

Video Overview

This video is a detailed look at the Fällkniven PXLbm, from handling to technical measurements.

What’s in the box?:
The presentation box comes in a white card sleeve (making it almost disappear in the Tactical Reviews all white studio). Slipping the sleeve off to reveal the black box inside with the knife nestled in a foam liner.

A good look round the PXLbm – Things to look out for here are:
This gallery is intended to show lots of the design details up close, including how the knife is put together and how it functions.
The black micarta handles (with inset badge) are polished and have a precise fit to the liners and bolster. You can see the single position pocket clip, plus how it is attached. On the blade, the engraving, thumb stud, grind and choil. Designed with a liner lock, you can see the lock engagement and detent ball. There is a lot to take in.

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 Elmax steel.

The Factory edge up close:

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.

NOTE: pay attention to the scale shown in the images and the near zero-grind; there is only a very small micro-bevel visible for the PXL’s factory edge.

What is it like to use?

My impression is that all of the Fällkniven folders I have handled have a similar ‘crisp’ feel to the finish. What I mean by this is that the edges of the liners, and lock-bar are on the verge of being sharp. Where another material or component is directly next to the liner, this provides a seamless transition and overall this personal observation doesn’t impact on usability at all. Gripping the knife to make cuts, you have the smooth rounded parts of the handle and bolster touching your hand. It’s more when you explore the knife (as if a worry stone) and your fingers find the inner edges of the liner are noticeable. It is most evident when unlocking the blade as where you press on the lock bar also has a crisp edge to it.

On first checking the knife in this review, there was some lock-stick. The crisp edge where you press on the lock bar to release it made this stand out more. Rubbing over the lock surface with a pencil sorted the initial lock-stick straight away and this has not come back.

Also on first looking over the PXL I had wondered if the narrow looking thumb stud might be hard on the thumb to operate – this was unfounded and it is well suited to the knife’s action.

Now, let’s talk pocket clips; so the PXL has a compact pocket clip and this is in the typically less popular tip-down orientation. On discussing this with Peter Hjortberger, the reasoning behind this is to provide a pocket clip which has minimal impact on the grip and handling of the knife. Like this it is also less disruptive to the overall design to not add additional clip positions. It is certainly true that no pocket clip makes the grip of a knife more comfortable.

For Fällkniven, a pocket clip is seen as advertising that you are carrying a knife, which is often not ideal in a public place. Because of this most folding models in the Fällkniven line up do not have a clip at all, although they are being added to three folding knife models, the PXL, the PXLx and the PCx.

Although described as a ‘large folder’ (and the XL in the model name), to me this is more of a medium size folder. It is a good fit to the hand, being neither too small to get a good grip, nor too large for the pocket. In my hands (taking XL size gloves) it is a very comfortable fit.

The simple combination of brushed stainless and polished micarta makes the PXL an elegant EDC companion. The compact pocket clip does provide a way to secure the knife to your pocket or to webbing or any other fixing point that suits. I would tend to carry with the clip holding it to an internal divider or pocket in a bag, rather than a trouser pocket. When using it in a trouser pocket the compact clip fits very well, neatly fitting over the edge seam of the pocket and holding securely.

Steel technology moves on, and I am slightly conflicted over the change to a single steel blade construction from Fällkniven. I did always like the visible San-mai line that a layered Fällkniven blade displayed, but now the (overall beneficial) switch to solid Elmax takes the San-mai line away. Of course the distinctive convex grind still makes the blade unmistakably Fällkniven in both looks and cutting ability.

That convex edge – seriously sharp and fine factory edge, and the grind makes it a very effective 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
_______________________________________________
Some slightly sharp edges on the liners and lock release.
Initial lock-stick – this has gone with use and pencil lead.

_______________________________________________
Things I like
_______________________________________________
Elmax blade steel at HRC 62.
Convex near-zero-grind edge. (Very fine micro-bevel)
Compact pocket clip has minimal effect on handling.
Elegant design and finish.
Precision action.
Comfortable grip for hard work.
A knife built to last and hand down the generations.

 
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.

Knife Review: Spyderco Stovepipe

29 January, 2023

Spyderco’s Stovepipe is full of drama and built to perform as strongly as it looks. The Stovepipe is based on one of David Rydbom’s famous custom knives, ‘Bill the Butcher’ from Kingdom Armory. A powerful cleaver-style blade made from CPM 20CV, with titanium handles and clip, as well as being packed full of milled details, this all really makes the Stovepipe stand out as something special. Join me in this review of the Spyderco Stovepipe to take in all of its details.

Video Overview

This video takes in all the details of the Spyderco Stovepipe, a folding knife inspired by custom knife maker David Rydbom’s “Bill the Butcher” design; the Stovepipe blends dramatic style with serious performance. In the video I cover the main design details, look very close-up at the knife, and then take Tactical Reviews standard detailed technical measurements.

What’s in the box?:
Or, in this case ‘What’s in the pouch?’ as the Stovepipe does not come in a box but instead in a nice quality padded storage/carry pouch. The knife is in a bubble wrap bag and comes with the knife information leaflet and a round sticker.

A good look round the Spyderco Stovepipe – Things to look out for here are:
Starting with the knife straight out of its wrapping and with protective oil making it look blotchy. Under the pocket clip a round plastic protector ensures when you get it the clip to handle contact point is completely unmarked.
A ring around the milled pivot bolt provides an over-travel stop for the integral frame lock bar. The more you look at the Stovepipe, the more details you find. As you step through this gallery you will see all the small milled in features and incredible attention to detail.

Explained by the Maker:
The reasons for certain design choices may not be clear when simply looking at an object, so this section is intended to give an insight into the thinking behind a design by speaking to the designer themselves.

This is the Spyderco description of the Stovepipe:

Inspired by custom knife maker David Rydbom’s “Bill the Butcher” design, the Stovepipe blends dramatic style with serious performance. Its stout cleaver-shaped blade is crafted from 4mm (.157-inch) thick CPM® 20CV stainless steel and has a deep hollow grind for superior edge geometry. The handle is constructed from two slabs of solid titanium joined by a titanium backspacer. Both scales are painstakingly machined to create beautifully crowned outer surfaces and the reverse-side scale forms the foundation of the knife’s Reeve Integral Lock (R.I.L.) mechanism. The oversized pivot pin is machined with artistic accents and serves double duty as an overtravel stop for the lock bar. To allow convenient carry, the Stovepipe includes a machined titanium clip configured for right-side, tip-up carry. The clip, scales, backspacer, and blade all feature a no-nonsense, industrial-style stonewashed finish.

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.

What is it like to use?
I find the Stovepipe a slight contradiction in that it is certainly built to work hard; materials, construction and strength are beyond question, but all the beautifully made details give the knife a lot of corners that are not hard-use friendly on your hands. The relatively compact size, despite the cleaver blade, and milled details creating lots of hot-spots mean that though capable of it, the Stovepipe isn’t a knife I would choose for heavy or extended jobs.

It looks fantastic and is both striking looking and by no means ‘usual’. Absolutely overflowing with interesting features, and a knife you will love looking at every time you bring it out to use.

The in-the-hand photos here show the Stovepipe in my XL-glove size hand. For me the Stovepipe has just enough handle for a solid grip and the blade length works for power cuts. The straight edge and blade tip present the cutting edge nicely for the type of EDC cutting I typically do.

One of the joys of the knife world is that there are so many designs, and so many purposes for a knife. The Stovepipe is an expensive knife, but one that justifies its price through quality of manufacture, intricate, intriguing and complex milling. Striking looks, with its origins in a proven custom design, the Spyderco Stovepipe is an outstanding cleaver-style knife.

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
_______________________________________________
Too many ‘corners’ for comfortable extended use.
High price point.

_______________________________________________
Things I like
_______________________________________________
Superb quality and finish.
Packed with machined details.
CPM 20CV blade steel.
Super strong construction.
Very high quality storage case included.
Custom design in a production knife.
Striking stand-out looks.

 
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.

Knife Review: lionSTEEL bestMAN

12 February, 2020

I was first able to handle the lionSTEEL bestMAN folding knife at IWA 2019 – those were prototypes. The finished production knives shown in this review are further refined compared to the prototypes (which you might have seen on the @TacticalReviews Instagram). lionSTEEL have taken the traditional folding pocket knife and modernised it using the best materials and giving you the choice of two blade shapes, single or double bladed versions and five handle materials.

A few more details:

What’s in the box?:

A good look round the single blade bestMAN – Things to look out for here are:

Though looking very traditional, the bestMAN uses modern materials.

A good look round the double blade bestMAN – Things to look out for here are:

Packing in a second blade gives both available blade shapes in one knife. In this case a little more traditional with a wooden handle.

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 blades are made from M390 steel.

Originally developed following the release of the Chris Reeve Knives Impinda, the bestMAN has been tested for opening and closing torque. The raw data is included but it is the average torque figures in bold that I would direct you to look at. Remember to check the technical testing link above for more on this.

What is it like to use?

After spending a lot of time carrying the single and double bladed versions, this feels the right place to start. Initially I would have been adamant that the double blade version was without doubt the one you had to have – two blades are better than one – one main blade and one left razor sharp as a backup – the whole ‘one is none’ thing. To a degree maybe, but I’ve gone the other way and found the single blade version to be my favourite. The reason being two-fold, firstly it is noticeably smaller and far less obtrusive in the pocket, and secondly it is much easier to open the blade. Nail-nicks are not ideal if your nails are softened by water or otherwise not very strong. With the single blade version you can pinch-grip the blade as well as using the nail-nick so opening is definitely easier.
The double blade version still has that advantage of giving both blade shapes and a second sharp edge, just with the burden of being a bit bigger.

If you do need to chose between the drop-point and wharncliffe, this might be easy if you have a firm favourite, and either way you won’t go wrong.
The straight cutting edge and lower point of the wharncliffe suits many EDC cutting tasks better for me than the drop-point.

Modifications:

No surprises for anyone reading my reviews, when I bring up the sharpening choil/rear point. Some of the bestMAN blades have a more pronounced cutting edge heel than others, but in general, not sufficient for my liking. I have made a minor modification to the blade heel to add a Victorinox style sharpening choil. Shown here is the double blade version with both blades modified.

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.

I’m trying something slightly different and 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
_______________________________________________
Double bladed version more difficult to open.

_______________________________________________
Things I like
_______________________________________________
Excellent M390 steel.
Nice traditional ‘friendly’ looking slip-joint.
Choice of two blade shapes.
Choice of single or double blade.
Choice of five handle materials.
Reliable design.
Smooth precise action.
Large nail-nick.

 

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)

The BESS Exchange – A forum discussing technical aspects of sharpness and truly understanding your sharpening process.

Showcase: Spyderco Shaman – The knife that nearly passed me by

20 July, 2018

While the latest ‘stand-out’ designs compete for our attention, often it is the quiet ones you need to look out for, and for me, this is what the Spyderco Shaman is. I very nearly passed this by while at IWA 2018 as it is a plain looking knife with stonewashed blade and matt handle – nothing exciting. Well thanks to Joyce at Spyderco, I didn’t miss out on this fantastic knife that nearly flew under the radar. This is not just a bigger ‘Native’, it is much more than that.

Gallery:

A quick note before you dive into the gallery; look out for the excellent ergonomics – with the Shaman, Spyderco have rounded all the handle edges of the matt finish G-10 handles, and this makes for a completely different feel for the knife, almost getting on for the feeling of a fixed blade. The compression lock keeps the lock out of the way of the grip nicely, and the finger choil and thumb jimping give a super secure grip. This one just feels right in the hand and pocket.

BESS Certified sharpness testing:

Before we get to the photos, also included in this showcase are the results of the factory edge sharpness testing. These are impressive results; see the gallery for the certificates.

The BESS ‘C’ scale of sharpness, was developed by Mike Brubacher (Brubacher Edge Sharpness Scale).


 
The Shaman’s factory edge has an average BESS ‘C’ sharpness of 211. At this sharpness it easily and cleanly slices 80gsm copier paper, and will shave hair from your arm. Spyderco reliably supply very sharp factory edges, and this, though not the best, is at the sharpness I would aim to re-sharpen a knife to, so more than adequate.

Don’t let the Spyderco Shaman pass you by, it is much more knife than its unassuming looks might indicate.

 

Discussing the Showcase:

The ideal place to freely discuss these reviews is on a forum. If you started reading the shorter forum version of the review, but followed the link this full exclusive review, please return to that forum to discuss the review there.
If you read the review entirely on Tactical Reviews, please consider one of the following to join in, or start, a discussion.

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

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

Knife Review: Hinderer Knives XM-Slippy

2 July, 2018

Hinderer Knives’ XM-Slippy was designed to answer the high demand from the European market for a Rick Hinderer knife that could be carried in areas with more restrictive knife carry laws; as its name suggests, it is a slip-joint knife. The knife was debuted at IWA 2017 and is currently entering into its second production run. The XM-Slippy shown in this review is a first run knife and externally there is no visible change when compared to the second run. Designed to be as universally EDC legal as possible, the thumb disc can easily be removed for two-handed opening if required.

New Review Format 2018!

Tactical Reviews is known for very detailed reviews using many high quality images. This has meant quite a lot of scrolling to read most reviews. In the new format, the review contains ‘responsive image galleries’ to better display these images as a slide show with captions.
NOTE: On a PC it is best to use the arrow keys to move through the images. Captions can be hidden by clicking the small ‘x’ in the caption box. To enable them again, close the gallery and reopen it.

A few more details:

What’s in the box?:

A good look round the XM-Slippy – Things to look out for here are:

This example has the VERY orange G10 handles, but the XM-Slippy is also available in much more neutral colours. The stonewashed steel pocket clip is fitted by default in the tip down position and is pretty thick and sturdy (also read ‘stiff’).
One design aspect needs a little more attention; the smoothing/easing of all edges. A very obvious example of this are the edges of the back-spring, and the bevelled edges provide shadow lines along the back of the handle. The fact all edges are eased/rounded gives it a distinct look and feel and a great comfort in the hand and pocket. Some might criticise the fact that the H doesn’t look as tight as they would expect, but this is as it should be; the combination of the easing and the fact there is an internal stop-pin results in this appearance, the blade itself is spot on and perfectly positioned.
Peering into the liners, you can see the very end of the clip screws just coming through the liner, but there is no contact with the blade; it does mean the screws are as stable as they possibly could be as they fill the threaded hole completely.

Rick Hinderer’s Thumb Disc:

The Hinderer adjustable thumb disc uses a small grub screw (0.035″ Allen key) to secure it in place. The Thumb Disc channel is the same on both sides of the CPM20CV blade, forming a T-shaped section that the thumb disc slides onto. The thumb disc can be positioned anywhere along the channel, or removed, allowing the user to find the best location for them.

The XM-Slippy with Thumb Disc removed:

If you need to disable OHO or prefer the look without the thumb disc you have the choice as the thumb disc can be completely removed.
The thumb disc slot also acts like a large nail-nick giving you something to grip to open the blade.

Explained by the Maker:

The reasons for certain design choices may not be clear when simply looking at an object, so this section is intended to give an insight into the thinking behind a design by speaking to the designer themselves.

While at IWA 2018 I had the good fortune to be able to talk to Rick Hinderer about this knife.

Video Edited with – Cyberlink Director Suite 5 (PowerDirector 16 and AudioDirector 7)
Camera – Panasonic HC-V770    Microphone – Tonor TN120308BL

The Blade and Handle Geometry:

Most knife specifications have a basic description of the blade geometry, but in this section I will be taking a more detailed look at geometry and balance.

Using a set of gauges and precision measuring equipment including a Vernier protractor, callipers, fixed radius gauges and the unique Arc Master adjustable radius gauge (the one that looks like a crossbow).

These measurements have been tabulated and are presented along with a few reference blades (8″ Chef’s Knife, 5.5″ Santoku and the popular Fällkniven F1).

Key aspects such as the primary bevel angle, grind type, blade depth, blade thickness, length, weight are detailed, along with balance information.

The ‘Balance relative to the front of the handle’ tells you if the knife will feel front heavy, or if the weight is in your hand (a positive value means the weight is forward of the front of the handle). The ‘Balance relative to the centre of the handle’ indicates how close to a ‘neutral balance’ the knife has in the hand.

In the case of full convex grinds the approximate centre of the grind is used for the primary bevel angle estimate.

The blade is made from CPM20CV steel.

New for 2018! BESS Certified sharpness testing:

The BESS ‘C’ scale of sharpness, developed by Mike Brubacher (Brubacher Edge Sharpness Scale) will now become part of Tactical Reviews’ knife testing process. Initially this will be used to verify the sharpness of the factory edge and allow the knife to be brought to a minimum standard sharpness before testing a blade’s cutting performance.

The XM-Slippy’s factory edge has an average BESS ‘C’ sharpness of 399. This was a show exhibit knife, so I would not comment on the absolute sharpness after all the handling and trying out it has had. As it was, the edge didn’t appear to have any rolling or damage, and with this edge would slice 80gsm well enough although not the cleanest of cut.
For testing I have taken the edge to a 30 degree inclusive angle and a BESS score of 200, at which point it is shaving arm hair with ease.

What it is like to use?

Colour is a matter of taste, and for me the Orange is perfect. I like to see where I’ve put down important tools, or worst case dropped/lost, but moving beyond the Oranginess…
There is a finesse to the overall finish which starts to sink in the more you use it. The XM-SLippy, has only one sharp edge, exactly where it should be. All the other corners are smoothed so that nothing catches on your hands, gloves or pockets. I cannot stress enough how much this adds to the quality feel as nothing ‘jars’ while you handle or use it. Some knives have an unrelenting crispness to their finish and this can mean that edges are sharp, the corners of liners, blade stop, back-spring etc, all of which can become fatiguing to your hands and pockets – not so with the XM-Slippy.
Many slip-joints use a half-stop position for the blade, and in a two handed opener I don’t object to this, but for a one-handed-opener, I find this a big no-no. The XM-Slippy has no half-stop, so the blade swings out smoothly all the way to snap into the open position without interruption. In my view this is exactly as it should be for a OHO, slip-joint or not. There are some that argue that the half-stop add to the safety in case of accidental closing, so the blade doesn’t close on your fingers. I’d counter that by saying that if your slip-joint is closing on you, you are not using it correctly, and if you have sufficient force to start closing the blade onto your fingers it is quite likely to keep going through a half-stop anyway. Rick has definitely got this right.
A design feature shown in the gallery is the relatively large choil. This is not really a finger choil, though can be used as such carefully, and it is too large for a sharpening choil. Instead its design purpose is so that if the blade is closed onto your fingers, it is the choil that actually hits your finger (see gallery) giving you some protection from injury.
Being based on the XM platform, the look is of course familiar, but it also includes some jimping which might be a little overkill for a slip-joint. The forward thumb grip is useful, but clearly when applying a lot of force with a slip-joint you need to be careful. There is jimping for a reverse grip and I’d say it is wholly unsuitable to use a slip-joint with a reverse grip, so don’t take its presence as a suggestion to use the XM-Slippy like this.
Rick has designed in easy user customisation for the XM-Slippy; starting with the pocket clip, which has two options, tip-up or tip-down. Keeping the refined finish complete, there is a blanking plate to fill in the alternate clip position, and swapping the pocket clip position is nice and easy. Using a standard Phillips screwdriver, simply undo the two screws holding the pocket clip and the two holding the blanking plate. Swap round and replace the screws…but wait, there is the next part. With the pocket clip off the knife, there is only a single screw holding the handle scale on. Take out that last screw and the G10 scale can be lifted off. Its fit is beautifully precise. A nice feature when swapping the handle scales is that with the scale removed, the knife is still fully functional, as the liners are held together with other fixings.
This example is fitted with the Hinderer ‘slicer’ blade which is an excellent general purpose blade shape for an EDC knife.
Is the adjustable thumb disc a gimmick? Maybe, maybe not. Though I can never see the extreme positions you could put the disc being used by anyone, the length of the thumb disc slot looks right for the proportions of the blade. Even small adjustments can make a big difference for your experience of using the knife, so don’t be afraid to move it about and try. I’ve settled on a position that is different to all my other knives with thumb stud /disc. Then of course you can take it off, if you are visiting an area where the law does not permit one-handed-opening. I have found the thumb disc slot does collect a bit of pocket dust, but nothing compared to a pivot or the handles, so not to worry, and anything other than a perfectly plain blade will fail the ‘peanut butter’ test anyway.
The factory/show edge needed attention before I started to really use it, and the CPM20CV proved to be very easy to sharpen and took a razor edge with very little work. My current sharpening method is to use a small belt sander (120 grit with a light touch) with bevel angle guide to reprofile to 15 degrees per side followed by a good stropping with a polishing compound, the edge on this blade simply wanted to be super sharp.

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.

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Things I like What doesn’t work so well for me
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High quality fit and finish. Expensive when compared to most slip-joint knives.
Adjustable / removable thumb disc. Pocket clip a bit tight for my taste.
All edges smoothed making it especially hand and pocket friendly.
CPM20CV steel takes a super sharp edge (with ease – depending on your sharpener).
Pocket clip can be positioned for tip-up or tip-down use.
Simple to replace/change handle scales.

 

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