Zero Tolerance

Zero Tolerance 0801 Review

Last Updated: August 7, 2019
Titanium framelock flippers. Are we sick of them yet? No? Great, because I’ve got another titanium framelock flipper review for you today. Given the rapid influx of titanium framelock flippers on the market, I initially thought that I would pass on the Zero Tolerance 0801. The wide shape, chunky build, and monochromatic look of the knife all lead me to quickly dismiss the knife.

Buy the Zero Tolerance 0801 at BladeHQ

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It wasn’t until I handled the 0801 in person that I decided to buy the it. Oddly enough, I became so intrigued that I ended up acquiring 2 of these at once – the standard version, as well as the 0801CF “Copperhead” limited release version of it. This review will focus on the 0801, as the 0801CF is a true collectible that I ended up selling off and never using.

Designed by acclaimed custom maker, Todd Rexford, this understated design is based off of his Singularity custom offering. The 801 is the second in a string of collaborations Todd has done with KAI (the previously reviewed Kershaw Injection being the first). This is his first high end collaboration with Zero Tolerance.

General Dimensions and Blade Details

The 0801 has an overall length of 8.2″, a 3.5″ blade, and weighs 5.85 ounces. The 0801 is a substantial knife and you will feel it in your pocket. It isn’t quite as chunky as the 0550, but it’s pretty darn close. No doubt that is due in part to the thick full titanium handle. I can’t think of any other production full titanium flippers on the market at the moment, so that is something to keep in mind. I like the fact that ZT has introduced a full TI handle into their lineup. Just understand that the 0801 ain’t no feather.

The blade on the 0801 is a spearpoint shape with a high flat grind. There is also a swedge that terminates well before the point to support the tip. The blade shape, like the rest of the knife, is pretty sober looking. But it certainly functions well in normal cutting tasks like breaking down cardboard boxes, doing light wood processing, and other general utility tasks. The blade is pretty thin behind the edge and the knife comes very sharp. It’s nice to see a high performance grind on this kind of knife, as the ZT/Hinderer collabs seem to favor strength over slicing.

The 0801 comes in Elmax steel. Elmax has become a staple in Zero Tolerance’s higher end line up. I have come to enjoy Elmax for its combination of good edge retention and relative ease of sharpening. I have had zero issues with rust or corrosion. I think Elmax is a good choice in this higher end offering.

Handle, Ergonomics, and Pocket Clip

The 0801’s full titanium handle slabs are separated by three black standoffs. This knife has been well executed. There are no visible machining marks, all the parts line up well, and everything has been nicely finished. The oversized decorative pivot is a nice detail, and the black hardware serves as the only contrast on the knife. The handle slabs themselves have been milled out with grooves and has a sort of sweeping faux bolster look. I am not wild and crazy about the grooves or the “ZERO TOLERANCE” brand engraved into the handle, but I have to admit Jim Skelton’s customized version with blue two-tone anodizing job really pops.

The 0801 works fine from an ergonomic standpoint. I wear a large glove and there is just enough room for a 4 finger grip – those with freakishly large hands may run out of real estate. There is something of a forward choil, so you can choke up and get a little more out of the handle if you need to, or lay back for more powerful cuts. There isn’t any jimping on this one, so you don’t have to worry about hot spots for your thumb, but I readily acknowledge that the absence of jimping may be a turn off for some. The rest of the handle feels good. This isn’t a funky handle shape so it should work well for most people.

The pocket clip on the 0801 is straight out of the KAI parts bin. A slightly smaller version of the clip can be found on the Cryo. Visually it’s not the most amazing clip, but it is very practical, especially if you are into deep carry. The 0801 buries into the pocket, but even if your co-workers won’t notice it, you certainly will. At near 6 ounces this is not a lightweight pocket knife. That’s the trade off when you go for a thick full titanium handle. It would be cool to see ZT pocket out the inside to lighten things up, but I know that is probably cost prohibitive. If you are into bigger, heavier knives this obviously won’t be an issue, but weight weenies need not apply.

Deployment and Lockup

As far as titanium framelock flippers go, the 0801 is up there with the best on the market. I’m not saying it’s as good as the freakishly fast 0454… it’s definitely nothing near that, but fans of snappy flippers should still be satisfied with this knife. The Elmax blade rides on KAI’s KVT captured bearing system, and you can see the guts of it peeking out by the lock face. I thin it is somewhat unseemly to have the bearing cage poke out like that, but I guess that is what needed to be done to make the knife work right. All said, fans of flippers will find a lot to like with the action of the 0801.

ZT incorporated a stainless steel lockbar insert into their frame lock, and the steel on steel contact makes for a secure and stick free engagement. I couldn’t detect any sort of blade play. The lock geometry of this knife has definitely been dialed in, and the blade centering is perfect. These details are important to find in this higher end knife.

Zero Tolerance 801 Review – Final Thoughts

There isn’t anything else out there filling the full titanium framelock flipper niche, so off the bat that puts the 0801 into a league of its own, unless of course you are willing to venture into custom, midtech, or aftermarket territory. The full titanium handle does have its potential drawbacks, mainly the weight, but there are plenty of people willing to forgo an ounce or two for full TI goodness.

Despite not having any direct competition, the 0801 doesn’t rest on its laurels. It is a very solid and well made knife. Build quality and materials are both excellent. The flipping action and lock up are superb. The design is austere and based off of Todd’s coveted custom offering. There is a lot to like here for fans of high end production knives and frame lock flippers. If you are interested in the 0801 I can safely recommend it.

Zero Tolerance 0801 Titanium Flipper Knife

Made in the USA; Manual open, KVT ball-bearing system
Frame lock; Reversible (left/right), deep-carry clip
Steel: ELMAX, stonewashed finish; Handle: Titanium
Blade Length: 3.5 Inch (8.9 cm); Closed Length: 4.7 Inch (11.9 cm)
Overall Length: 8.2 Inch (20.8 cm); Weight: 5.8 ounces (164.4 g)

I recommend purchasing the 0801 at Amazon or BladeHQ.

Zero Tolerance 0454 Review

by Dan Jackson 12 Comments

Last Updated: July 27, 2018
Every so often as a knife collector I have had my expectations taken up a notch. For purposes of this introduction I’ll call them “game changing blades.” Making the jump from a $25 knife to a $65 knife was one such moment – my move from a CRKT M16 to a Benchmade Griptilian opened my eyes to what nice knives were all about. Climbing up the ladder further I have experienced the incremental improvements that often come with expending increasingly more money on a knife.

The jump to a CRK Sebenza was one such revelation. And I have to consider the Zero Tolerance 0560 and the Lionsteel SR-1 as game changers in their own right as well. Maybe these weren’t leaps directly correlated to the price of the knife, but each blade brought it’s unique strengths in quality of construction, innovation, and design. I have appreciated the experience as a collector and that is a huge part of the reason why I continue to spend time working on this website.

Well the 0454 is another game changer – in so many ways that I hardly know where to begin. Designed by Belarusian knifemaker Dmitry Sinkevitch the Zero Tolerance 454 may be the sexiest blade to cross my path yet. This knife has not yet been released to the public and was named the Blade Show 2013 knife of the year. I was extremely fortunate to be one of the lucky 10 individuals selected at random at the 2014 Blade show for the opportunity to buy this knife.

I remember winning the 454 like it was yesterday, because it actually was only a few weeks ago. I had entered this lotto among many others on offer at the Blade show. In addition to the 0454 I was hoping for the chance to score a Brad Southard, Michael Burch, or perhaps even a Hinderer XM-18 at a reasonable price. Most of the time these lottos don’t pan out, but you have to be in it to win it. So I could barely believe my ears when my name and number were called by Kershaw Jen for the 0454 lotto.

My first thought after parting ways with $500 and tucking the 454 into my backpack was, “I hope I don’t get stabbed in the parking lot over this thing” because I knew that the fabled 888 has sold for as much as $3,000 at auction. Thankfully I made it out of the parking lot and all the way back home to Florida with only a scrape, and I feel incredibly fortunate to bring you this review.

Let me start by disclaiming that I have not carried this knife nor have I actually used it to cut anything. I will in all likelihood keep it as a collectible as it’s an incredible knife and very rare. I will be examining it as critically as I can, but take this “review” with a big grain of salt…

General Dimensions and Blade Details

The 454 has an overall length of 9.385″, sports a 4.1″ blade, and weighs a mere 4.1 ounces. This is the cutlery equivalent of a supermodel, with biologically improbable dimensions and curves that make the jaw drop and eyes glaze over. The knife feels like a feather in hand, and they have crammed a ton of blade into this slender profile.

The 454 has a modified drop point blade. There is something about Dmitry Sinkevich’s designs that really speak to me. Whether it’s his collaborations with Shirogorov, Fantoni, or this one with ZT, I am really enjoying the hard lines and athletic curves of his designs. The this is a long narrow blade, and it fits well with the long narrow handle. It has a high flat grind and a long swedge. The tip is very fine but it feels like there is still some meat behind it. If I actually cut anything with it I’ll let you know how it performs but I can say it came shaving sharp and I’ve already managed to cut myself twice with this long blade.

One of the proudest features of the 454 is its composite steel blade. The dark sections are CPM D2 while the silver middle section is 12C28N. The pieces have been braised together with copper. It isn’t clear what they have managed to heat treat this knife to, although I know that ZT has struggled to properly manufacture and heat treat some of these fancy composite blades in the past. I have plenty of knives that I can cram into my pocket and cut with, so I don’t feel the need to do that with this very rare knife. Some people feel the need to carry and use every knife in their collection – even expensive custom pieces. I have my users and and I have my collector pieces, and the 454 is firmly in the collectible category. I won’t make any qualms about that.

Handle, Ergonomics, and Pocket Clip

Every piece of the 0454’s handle has been 3-D machined. ZT started with two slabs of carbon fiber, sandwiched them between a titanium backspacer, and went to town with them. The finishing work is immaculate and the carbon fiber handle makes the knife feel exceptionally light for its size. Even the lanyard hole has been elegantly rendered. Everything is just super nice.

The 454 is a long knife, so it should come as no surprise that there is plenty of room for your hand. The curves of the handle fit my fingers naturally and the 3-D machined carbon fiber fills the hand. There is a row of mild jimping on the thumb ramp. It does a great job indexing and holding the thumb in place without being overly sharp or irritating. I haven’t used this knife hard, but I think this will be a comfortable knife to use.

The pocket clip is an elegant piece of 3-d machined titanium, and looks like something out of the Shirogorov catalog. Jim Skelton has told us that any knife over $700 should have a 3-d machined pocket clip. My only experience with these kinds of clips has been with my Mnandi (a knife I have really grown to enjoy), and I am very happy to see this clip on the 454. It elevates it and makes it even more unique. I’ve never used this pocket clip, but the spring is very strong and is positioned for deep right side tip up carry. I’m glad they didn’t go ahead and drill a bunch of holes in this piece. As Thomas W can attest to, pocket clips can be tough to get right, but I wouldn’t change a thing with this one.

Deployment and Lockup

I have publicly commented that I think that people that wax poetic for extended lengths about how well their knives flip are blowhards. I made sure to skip lunch before writing this review because I am about to eat my own words. Deploying the 454 is like deploying a surface to air missile. The detent is strong and the blade explodes open, without fail, every single time. By far it is the most robust flipper in my collection. Zero Tolerance installed their KVT bearing system and the blade rotates around a large decorative pivot. The action is smooth. Fall closed with the force of gravity smooth. I will say that the flipper tab can be tough to use some time. The combination of uber strong detent and total lack of jimping on the tab means that my finger has slipped off the trigger on more than one occasion when trying to flip open the knife.

ZT installed a sub frame lock on the 454. This is the same technology used in their higher production products, like the recently reviewed Kershaw Knockout, and I think it is cool to see that translate up and down their product line. This time around they upped the ante by 3-D machining the sub frame lock out of titanium, and then installing a stainless steel lock insert that doubles as a hidden over-travel stop mechanism. Lockup is early and secure, and blade centering is perfect. One thing I noticed on my 0454 is that the oversized pivot screws on my knife did not come with locktite. After only a couple flips they began backing out. I could cinch them back down with the meat of my thumb, but after a couple days I noticed a slight rattle with the handle. After torquing down the pivot with a driver I was able to fix the problem and remove the rattle entirely.

Zero Tolerance 0454 Review – Final Thoughts

I don’t think anyone will be surprised when I say that the 0454 is one hell of an awesome knife. As a collector and enthusiast of high end production pieces I am extremely impressed by the 454. The beautiful design, high end materials, advanced manufacturing, and impeccable fit and finish all make this well worth the $500 asking price to me. The 0454 is yet another showcase of Zero Tolerance’s talent and we can only hope that the sweet stuff found in these high end limited production knives continue to trickle down to ZT’s mass market products.

Buy one without regret if you have the funds and the opportunity, but don’t wait long – I see no reason why the 0454 won’t be as coveted and collected as the triple seven or 888.

Sale

Zero Tolerance (0450); With 3.25” DLC-Coated S35VN Stainless Steel Blade, All-Black Carbon Fiber and Titanium Handle Scales, KVT Ball-Bearing Opening, Frame Lock Reversible Pocketclip; 2.45 OZ., Silver, Small

Titanium frame lock houses hardened steel lockbar; frame lock secures blade in position so it does not close accidentally
Flipper works for left- and right-handed users; assists blade’s manual release with one-handed convenience
Finger guard, jimping and choil protect fingers during rigorous use while slicing, cutting, chopping, scaling, slashing, piercing or digging in any environment, in any conditions
Drop-point tip provides extra strength and chip resistance and eliminates pitch momentum
Overall length: 7.4 inches; closed length: 4.1 inches; blade thickness: 0.121 inches; weight: 2.9 ounces

These currently aren’t for sale, although I guess you could always lust over them at BladeHQ or pick up a ZT452 at Amazon to try and scratch that itch. As always, buying anything through the links on this site helps support BladeReviews.com, and I greatly appreciate it. Thank you so much for all of your support.

Zero Tolerance 0566 Review

by Dan Jackson 14 Comments

Last Updated: July 13, 2019
I have recently been making regular appearances on the GearGeeksLive podcast with Tony and Andrew. Tony and I recently had Thomas Welk from KAI (Kershaw/Zero Tolerance) on the air for an episode about KAI. I found it fascinating to get inside the head of a prominent representative of a major cutlery company.

Buy the Zero Tolerance 0566 at BladeHQ

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One part of the show that really stuck with me was Thomas’ point that many knives are designed to fit into boxes. And no, I’m not talking about those fancy cardboard wrappers we have all come to know and love. I’m talking about MSRP. Most knives coming out of high volume manufacturers are designed around a price point, because these large knife manufacturers work with major retailers and these major retailers put manufacturers under tremendous pressure to deliver product at certain price points. If a manufacturer decides to base their business around working with large retailers, then this can make up a large part of their bottom line.

Ultimately, the point Thomas was making is that production knife making is usually a study of compromise, oftentimes to the chagrin of enthusiasts like you and me. Not every knife coming out of KAI’s doors can be a 0888. Hell, they can’t even just produce the 0560. Instead, these companies must appeal to a broad range of consumers with a varied budget. This is why we see everything from a $250 Zero Tolerance 0560, to a $25 Kershaw Cryo. ‘Tis the nature of the big production house beast.

And then we have the 0566, which fits in between the 0560 and the Cryo – both in size and in MSRP ($180 – $150 at retail). More interesting is that the 3 blades share a Rick Hinderer design pedigree, and loosely resemble his coveted XM series of folding knives.

This time around Zero Tolerance has tried to appeal to the persnickity middle market, attempting to tow the fine line between high end and high value. As I am sure Thomas will tell you, that isn’t always easy. I see the 0566 as a real exercise in compromise. There is a certain danger to trying to make everyone happy, and the goal of my review is to determine whether ZT struck a sweet spot, or pissed everyone off.

General Dimensions and Blade Details

The 0566 has an overall length of 7.7″, has a 3.25″ blade, and weighs 5.3 ounces. While substantially smaller than my 0560 it only weighs .7 ounces less. This is due to the stainless steel frame lock and full steel liner. Depending on your perspective, the knife either feels “substantial” or “heavy”. Thomas talks on the podcast about how some consumers equate weight with quality. I’m not sure I am one of those customers.

Weight issues aside, I like this size for a robust EDC or, for lack of a better phrase, folding tactical knife. The size compares favorably to classics like the Benchmade Griptilian and Spyderco Paramilitary 2.

The blade shape is classic Hinderer drop point and looks identical to the 0560. Mine was ground evenly, came with a very rough stonewash, and came from a fairly thick piece of Elmax steel. The blade geometry is middle of the road. You aren’t going to win any cutting competitions with this knife, but it’s sturdy and will hold up well under regular and sustained use. It’s not nearly as thin as my Volli, but then few production folders in my collection are.

Elmax steel and Zero Tolerance is a pairing not without its controversies. People have said that ZT jacked up the heat treat on some of the earlier Elmax knives or burned the edges in the final sharpening. I did not find that to be the case on my 0566. I went through my usual favorite cutting demonstrations, which included working through sections of 3/8″ and 1/2″ manilla rope and some commercial grade cardboard. The Elmax held up well. It continued to hold a good edge, and when it was all said and done sharpened back up easily with stops and a fine Spyderco Sharpmaker stone.

The only thing to note, was that after a period of hard cutting I would get a little lock stick with the steel framelock. Nothing I couldn’t pop open with one hand, but definitely note worthy. The lock stick went away after I disengaged the lock.

Handle, Ergonomics, and Pocket Clip

Although the shape of the 0566’s handle mirrors the 0560, ZT definitely approached it with a $180.00 MSRP box in mind. You have flat peel ply G10 over a full stainless steel liner, pillar construction, and a solid steel frame lock. It’s a far cry from the 3D machined scales of the 0560 with swiss-cheesed liner and pocketed titanium frame, but it’s still a sturdy and well made handle. ZT went with relatively beefy hardware and finished everything nicely. Everything lines up well, and the pieces are cut out clean and crisp, while the edges of the handle are all nicely broken and comfortable to hold. While this isn’t cutting edge tech found in ZT’s higher end offerings, it’s still a well made handle.

Ergonomically you have a relatively thick and comfortable handle. The jimping, which is the biggest problem with the 0560 because it is so hellaciously sharp, has been fully addressed on this model. There is still some jimping, but it has been flattened out to reduce the chances of slicing your thumb open on an aggressive cut. The flipper tab limits your grip options, but the knife holds nicely in forward and reverse grips.

The pocket clip is an enlarged version of the clip found on the Cryo. It’s a black deep carry style clip. It works well, and offers the user discrete deep pocket carry. It’s a 4 position clip, which is appropriate on this user/tool grade knife. Thomas points out that pocket clips are the hardest part of the knife to design as you will always piss someone off regardless of the design, and they are one of the most expensive parts of the knife to manufacture. All things considered I think they did a good job with this clip.

Deployment and Lockup

I often wonder if dedicating an entire paragraph to “deployment” is worth my time and your attention, but with the 0566 at least there is some interesting stuff to talk about. The knife comes assisted with Ken Onion’s speed safe mechanism. What is interesting is that the 0566 also comes with a ball detent. Thomas said that ZT did that purposely so that the user could de-assist the knife if they wanted to. He stated that it would not perform as well as something like the 0560, which is fully designed to be a manual knife, because the combination of spring tension and a strong detent would make the knife very difficult to open with the spring in.

The assisted opening was snappy and there wasn’t any annoying torsion bar rattle like on most other speedsafe knives I’ve reviewed, but being a fan of manual action knives I took the speed safe torsion bar out early on in the review process. It took a little fiddling to get the blade centering and deployment to play nicely together, and my blade still heavily favors the G10 side (although it does not rub). But that is OK, as I understand the knife wasn’t designed to be a manual flipper.

All things considered, the flipping action is actually pretty good on this knife, especially after an application of TUF-Glide and a break in period. Don’t expect Spyderco Domino level performance, but if you preload and “push button” (as opposed to pulling back on the flipper like flicking a light switch) the flipper the blade pops out nicely. This knife uses phosphor washers, and they are really smooth. I am actually pretty happy with the manual action on this knife.

I’ve trolled the forums a little on this knife and some people have good results like me, while others haven’t gotten their knife to flip as well, so this is one of those your mileage may vary type things…

Lockup on the 0566 is solid and without play in any direction. You would expect that out of a 5.0+ ounce knife with a stainless steel lock bar. It met my expectations. Lockbar disengagement was nice and easy, and as I mentioned previously, I didn’t notice any blade stick unless I was using the knife hard.

Zero Tolerance 0566 Review – Final Thoughts

The 0566 is a pretty good tool knife. If you were like everyone else I spoke with, and liked the 0560 but found it to be too big, the 0566 might be a good choice. That is of course just as long as you aren’t expecting an actual mini 0560. Practically speaking, the 0566 checks many boxes. It’s a comfortable knife, and it cuts well enough. I have to say that it is heavy. If I had to give it a number rating, I’d go with maybe a 6.5 out of 10. Not a bad knife, but far from perfect. I could live without a bearing system and 3-d machined handles, but would have really loved to see KAI make the jump from stainless steel to titanium framelock on this model.

While I like the 0566 alright, I don’t think it will make as many waves as the 0560 or the Cryo. A danger with being too middle of the road is that you risk getting ignored. I don’t doubt that ZT will be able to move some product, as it is drafting off of the wildly popular relationship KAI and Rick Hinderer have formed, but whether it will remain as memorable (or infamous) as some of the other KAI/Hinder collabs remains to be seen. As a businessman myself I don’t have a problem with companies making money, but I must admit the enthusiast inside of me would have loved to see just a little more here. I think that a ZT/Hinderer collab with a ~3″ blade and most of the high end fixings would do really well, regardless of the MSRP.

Zero Tolerance Hinderer Folder Pocket Knife (0566); 3.25” Stonewashed S35VN Steel Blade; Handle with G-10 Front and Steel Back, SpeedSafe Opening, Frame Lock, Quad-Mount, Deep-Carry Pocketclip; 5.4 OZ

Collaboration between Zero Tolerance and custom knifemaker, Rick Hinderer with open construction, steel tube spacers, flat rounded edges, high-quality materials and solid lock up
Premium S35VN steel blade has enhanced toughness and long-lasting sharpness; resistance to edge chipping, wear and corrosion
SpeedSafe Assisted Opening for quick, fast, easy, safe, secure, one-handed blade deployment
Stonewashed blade finish has a roughed-up, non-reflective, scuffed, desirably worn look
Durable, stable, lightweight, textured, black G-10 front handle scale; all stainless-steel back handle scale

I recommend purchasing the ZT 0566 at Amazon or BladeHQ. Please consider that purchasing anything through any of the links on this website helps support BladeReviews.com, and keeps the site going. As always, any and all support is greatly appreciated. Thank you very much.

Zero Tolerance 0560 Review

by Dan Jackson 30 Comments

Last Updated: July 27, 2019
Finally! A Zero Tolerance 0560 review. It feels like forever ago since the 560 was first announced at the 2011 BLADE Show.

Buy the ZT 0560 at BladeHQ

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Since then I have heard the rumors, ogled the pre-production photos, and even caught a glimpse or two of the knife in some 2012 SHOT Show coverage. But that wasn’t going to do it. I needed this knife. What is it about Hinderer’s designs that have us fiending like depraved characters on a rerun of The Wire? Needless to say, I pre-ordered this bad boy a long time ago, and didn’t think twice about plunking down over $250 for the chance to check out this knife. After all, compared to a real Hinderer it seemed like a steal.

And for me, that really was part of the allure. If you spend any amount of time in knife circles, Rick Hinderer is a name that constantly resurfaces. Known for making highly sought after custom and semi-production folding tactical knives, his pieces easily command prices of $600 and up. So his recent relatively inexpensive collaboration with Zero Tolerance really caught my eye. Much like the ZT 0550, the 0560 allows you to get your hands on a Hinderer design without paying the Hinderer price tag. And I will tell you, as someone who owns both the 0550 and 0560, the praise for Rick’s designs is well deserved. This is a phenomenal knife, and it’s not going to make resisting a XM-18 any easier!

General Dimensions and Blade Details

The 0560 has an overall length of 8.8″, a 3.75″ blade, and a weight of 5.8 ounces. So yes, this is a big knife. For me it isn’t the most practical size for EDC, although that certainly didn’t prevent me from cramming the 560 into my pocket the moment it arrived. I have to say that one thing you will not hear me complain about is the weight. The 0560 is an incredibly light and balanced knife for its size. For example, the 0560 is substantially larger than the 0550, but weighs the exact same. It’s wonderful. And next to something like a ZT 0300 there is no comparison at all. For such a large knife I had no problem carrying it as my primary blade.

The blade is a sturdy modified drop point design. It shares a number of similarities to the blade on the 0550, having a similar swedge, and being made from 4mm thick blade stock. Both designs have high flat grinds, neatly applied edges, and feature a stone washed finish. This is a highly functional blade shape. The tip is extremely sturdy, there is a lot of belly for utility work, and the knife arrived exceptionally sharp. Considering the thick blade stock this is actually a very decent slicer, and zipped through cardboard without issue. In my experience this well rounded blade shape works great for most of daily tasks.

Kershaw and Rick went with ELMAX for the blade steel. This is a high end powdered steel made by the Austrian manufacturer Bohler-Uddeholm. I don’t have a ton of experience with ELMAX yet, but my initial research revealed that this is very interesting steel. According to Bohler, this is a high Chromium formulation that is extremely wear and corrosion resistant, while also being quite tough. It does best heat treated to between 58-60 HRC, and is often used as a high speed tool steel in both the electronics and food processing industries, where wear and corrosion resistance are both extremely important. These same properties are also important for cutlery, making ELMAX a natural choice for high end knives.

This is exotic stuff, and my initial impressions are very good. ZT heat treated the blades to around 60 HRC, which is right in the sweet spot. As far as edge retention is concerned, I expect this to perform better than S30V, but not quite as well as as M390 or S90V.

Handle, Ergonomics and Pocket Clip

Handle construction on the 0560 is truly next level stuff. I have always been impressed by the extreme levels of fit and finish found in ZT knives, but the 0560 has really been kicked up a notch. What we have here is a black G10 scale over a stainless steel liner on one side, and a titanium framelock on the other. Zero Tolerance also makes the 0561, which is the same knife with a brown G10 scale. What I found especially impressive about the 0560 is how they have 3d machined these handles. The surface of the handles are slightly radiused and everything has been precision cut. The stainless steel liner has been thoroughly milled to reduce weight, and even the titanium side has been milled out. These “weight relief pockets” really lighten the knife up. It’s an ingenious detail that I haven’t seen before, and it really sets the 560 apart.

In hand the 0560 feels extremely secure. There is aggressive jimping on the thumb ramp and choil, and it really locks your hand in place. The ergonomics are aggressive, and some might find the jimping too sharp. Personally I found that they were not aggressive to the point where the knife was uncomfortable to use. This knife was designed to get work done in all conditions so I can’t fault the knife for providing all this traction. I wouldn’t have it any other way.

The pocket clip is a brand new design for the 0560. This was especially interesting to me because with a big knife like this, the pocket clip will be the difference between making the knife a daily carry item, or a sock-drawer novelty. The clip ZT previously used was actually pretty good, so I approached this new design cautiously.

So I am very pleased to say that I like the new clip a lot. It’s functional, discrete and a little more refined than the old style of clip found on many Zero Tolerance offerings. It is an attractive deep carry clip that can be mounted on all 4 corners. I am also happy to say that retention is excellent. Additionally, I found the 0560 to carry very well. Living in Florida, I often wear lightweight shorts. The clip on the 0560 performed flawlessly, holding the knife exactly where I wanted it. This great clip combined with the thin and lightweight design made the 0560 a joy to carry.

Deployment and Lockup

Deployment on the 0560 is absolutely effortless thanks to a nice flipper design and Kershaw Velocity Technology (KVT). KVT is a bearing system that replaces a more traditional phosphor bronze or teflon washer with a series of small ball bearings. In this case, the bearings are pressed into a nylon race so when you take the knife apart, the bearings don’t go everywhere (contrast that with IKBS, where the bearings sit loose in a groove, and they can go everywhere if you disassemble they knife). In practice, KVT makes for exceptionally smooth deployment. The design gives you the option of a flipper or ambidextrous thumb studs, and either method results in smooth, near-effortless deployment.

I will say that I have noticed that some people have had issues deploying the 0560 with the right hand thumb stud. What can happen is if you try to deploy the knife with your right hand, you can you end up putting pressure on the lock bar. This makes it more difficult to overcome the ball detent with this particular design. The thumb studs actually double as a stop pin, so some argue that this knife was designed to only used as a flipper (like say, the Kershaw Skyline). As a lefty I had no problem with using the thumb studs, and found that I could even use them with my right hand if I was careful not to put a lot of pressure on the lock bar. I don’t think this is a huge deal at all, but since there are (very) few gripes with this knife I thought it was worth mentioning.

Like Hinderer’s in-house knives, the 0560 makes use of a beefy titanium framelock. The knife world knows Rick can design a frame lock, and Zero Tolerance has proven time and time again that they know how to make production framelocks right. My knife locks up early, there is no blade play at all. Also there is also no stickiness when you go to disengage the lock bar. This is pure framelock bliss, and is exactly what I expect from a high end titanium framelock knife.

Zero Tolerance 0560 Review – Final Thoughts

As far as I am concerned, the ZT 0560 is a marvel of a folding knife, and a technological masterpiece. The folks at ZT absolutely loaded this one to the gills with the latest and greatest features and manufacturing – and the resulting knife is absolutely wild.

The 0560 is impossibly light, the blade opens effortlessly, the machining and overall level of fit and finish is astounding, and the materials are absolutely top notch. I also think the design is quite attractive – that never hurts. The lightening pockets in the titanium handle slab is nothing short of revolutionary, and I don’t doubt that this will be a game changer for other manufacturers. This is easily another home run for Zero Tolerance and is without a doubt their most exciting offering to date.

Zero Tolerance ZT0560 Hinderer Design Black Folding Knife

Steel: ELMAX, stonewashed finish
Handle: 3-D machined G-10 front scale, 3-D machined titanium back handle, stonewashed finish
Blade Length: 3.75 inches; Closed Length: 5 inches; Overall Length: 8.8 inches; Weight: 5.8 ounces
Frame lock; Thumb stud; Lanyard hole; Flipper; Deep-carry pocketclip; Quad mounting
Made in the USA

I recommend purchasing the Zero Tolerance 0560 at Amazon or BladeHQ. Purchasing anything through any of the links on this site helps support BladeReviews, and keeps this review train running. As always, any and all support is greatly appreciated!

Zero Tolerance 0350 Review

by Dan Jackson 38 Comments

Last Updated: April 5, 2020

My Zero Tolerance 0300 got a lot of looks when I carried it around. At over 9″ long and with a weight of 8.6 ounces, it definitely raised some eyebrows. The excellent S30V blade was a force to be reckoned with, and I really enjoyed the loud “thwack” of the assisted opening. It was generally a really cool knife to carry, but lets be real, it’s not always practical to tote around such a beast of a blade every day. After a while a knife of that size (and weight!) might get pushed to the back of your EDC rotation, to eventually fall off into a dark corner of your knife collection.

Buy the Zero Tolerance 0350 at BladeHQ

Buy on Amazon

So the good folks over at Zero Tolerance decided to tone things down a little and offer a slightly tamer, yet no less cool version of the original 0300; the Zero Tolerance 0350. This little brother packs many of the great features that made me fall in love with the 0300, but comes in a size that is much more practical for many people to EDC (although it’s still a big knife – lets not kid ourselves). Lets take a closer look and see what the ZT 0350 is all about.

General Dimensions and Blade Details

WHile the 0350 is not as portly as it’s big brother, it still is not what I would call a “small knife.” The 0350 has an overall length of 7-5/8″ a 3-1/4″ blade and a weight of 6.2 ounces. So it’s still on the heavy side, and perhaps still too big for some to EDC, but if a sturdy good size folder is what you are after I don’t think it’s a huge issue.

The blade is a modified drop point design. There is a small recurve and tons of belly. This is the same blade shape found on the 0300, just shrunk down slightly. I like how the tip has been left very strong. The tip of the 0350 has good piercing strength, and the high flat grind makes the knife excellent for slicing. While recurves can be a pain to sharpen, they really help feed material into the edge and are great slicers. ZT rounded things off by applying a beautiful edge and laser engraved hallmarks. This is a great blade shape a wide variety of applications.

The steel on this knife is S30V, which is absolutely awesome stuff. I am a big fan of S30V because it holds a very nice edge for a long time, and is still reasonably easy to sharpen. S30V is also resistant to rust and corrosion. Zero Tolerance applied a very nice DLC (diamond like carbon) coating to the knife, which is about as durable as knife coatings get. In summary, this is a great blade shape made of great steel with a great coating applied to it.

Handle, Ergonomics, and Pocket Clip

The ZT 0350 features a classic handle formulation – black G10 over very thick stainless steel liners. The handle has been meticulously finished – I absolutely love how everything lines up perfectly, and there isn’t a machining mark to be seen. As far as construction goes, everything is held together with torx bolts, and you have a partial G10 backspacer. My only suggestion for Zero Tolerance would be to mill out the liners a little to perhaps shave off a few tenths of an ounce. Really though, this handle is built like a tank and finished like a Swiss watch.

The ergonomics on the 0350 are extremely satisfying. I wear a large glove and it feels like the knife was custom made for my hand. The width and thickness to the handle really fills the palm while the choil and thumb ramp prevent your fingers from slipping forward. The G10 has a medium level of traction, which is very pleasant feeling and offers good feedback. In reverse grip there is additional jimping for your thumb. All in all it’s a very comfortable and secure grip.

The pocket clip is right out of the Kershaw parts bin and is simple, but effective. First of all, it’s unobtrusive with it’s flat black coating. It has excellent retention, which I find extremely important for a heavier knife – this means that the knife won’t slide around your pocket (or worse, fall out entirely). The fact that this is a true 4 corners clip (ambidextrous tip up or tip down carry) almost brings a tear to my eye. This is truly a well done pocket clip.

Actual carry isn’t that bad. I found the knife is about as unobtrusive as 6+ ounces can get, although it’s certainly a change from say, my more typical 3-4 ounce EDC knives. For guys who regularly carry larger knives, I don’t anticipate any problems at all.

Deployment and Lockup

The ZT 0350 gives you the option of either a flipper or thumb studs for deployment. In practice, only the right hand thumb stud is available (the left side sits too close to the handles) but my preference is for the flipper anyways. Either way the knife springs to life with very little effort due to the stellar Speedsafe assisted opening mechanism and high quality phosphor bronze washers. This is a knife that fires hard and fires fast. And on a tactical knife, this kind of easy of deployment can be the difference between life and death. If assisted opening knives aren’t your thing, it’s easy enough to remove the spring – deployment will be smooth regardless.

Lockup on the 0350 is accomplished by a very beefy liner lock. This is a very well executed liner lock, and it bites in early with plenty of room for wear. One of the biggest differences between the 0350 and the 0300 is the absence of the titanium framelock, but I have just as much confidence in this very thick liner. It almost goes without saying, but I didn’t detect blade play in any direction.

Zero Tolerance 0300 or Zero Tolerance 0350?

A common question people have is whether they want the ZT 0350 or the larger ZT 0300. If you are one of those people, I made a video comparing the two knives.

Zero Tolerance 0350 Review – Final Thoughts

The Zero Tolerance 0350 is an absolutely outstanding knife. I love everything about it, from the choice of materials, to the incredible fit and finish, to the stellar design, to the great ergonomics, right on down to the excellent pocket clip. I am also very pleased to see that this knife is made in America and still comes in at a decent price.

Currently these can be had for right around $100. When you consider how well this knife is made, I think it represents an excellent value – especially when the 0300 costs over $200. It’s been a real pleasure having this knife in my collection and it really makes me excited to review more Zero Tolerance knives in the future. The company really seems to know how to put together a great blade and am truly excited to see what they have coming up next.

Zero Tolerance 0350 Folding Pocket Knife; 3.25” S30V Stainless Steel Blade with Black Tungsten DLC Finish; Textured G-10 Handle Scales, SpeedSafe Assisted Opening, Liner Lock, Quad-Mount Clip; 6.2 OZ.

High performance and premium quality S350V stainless steel makes the recurve blade extremely durable, corrosion resistant and wear resistant
Non-reflective black Tungsten DLC (Diamond-Like Carbon) blade coating and black G-10 handle scales cleanly pair together for a sleek, smooth
Quad-mount pocket clip convenient for left or right handed, tip-up, or tip-down carry
Ideal EDC, easy folding pocket knife for everyday tasks—survival tool, precision cutting, self-defense, tactical use or the perfect gift
General all-purpose knife great for EDC or use while working, camping, fishing, hunting, utility or any outdoor activity

I recommend purchasing the Zero Tolerance 0350 at Amazon.com or BladeHQ. Purchasing anything through any of the links on this site helps earns BladeReviews a small commission at no cost to you, and keeps this review train running. As always, any and all support is greatly appreciated.

Zero Tolerance 0550 and 0551 Review

by Dan Jackson 10 Comments

Last Updated: August 3, 2019
Today I am taking a look at the Zero Tolerance 0550, a special collaboration between ZT and Rick Hinderer of Hinderer Knives. Rick has been making knives and self defense weapons for over 20 years. He started out specializing in Damascus and art knives, but over the past decade has made a transition into heavy use knives. These knives are extremely popular with military and law enforcement due to their uncompromising quality and extreme hard use durability. Naturally, knife collectors, enthusiasts and general consumers also became very interested in these knives and they have become a benchmark for quality among the knife community.

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Mr. Hinderer is also known for his various knife innovations, the most famous being his “Lockbar Stabilizer,” which is used on his titanium frame-lock knives to prevent over-extension of the frame-lock when you are disengaging the lock. Over the years Mr. Hinderer has been involved in several other collaborations with Gerber and Benchmade, designing various production knives.

The Rick Hinderer and Zero Tolerance Collaboration

What excites me about his latest collaboration with Zero Tolerance, is that ZT is really taking Hinderer’s hard use philosophies to heart by combining premium materials with USA craftsmanship to build the 0550 series of knives. The end result appears to be a knife with a lot of the qualities people lust over in Hinderer’s very rare and expensive custom and semi-custom knives at a price that many collectors can afford.

The 0550 series currently contains 2 knives. The 0550 is the regular production version of the knife and the 0551 (shown here) is a special edition limited to only 1000 pieces. The 0551 differs from the 0550 in that it uses a different type of steel and has a special pattern on the G10 handle scale. Rumor has it that ZT may make more of the 0551.

General Dimensions and Blade Details

The ZT 0551 has a blade length of 3.5″, a closed length of 4.5″, a blade thickness of 0.156″ and a weight of 5.8 ounces. I know for some that the words “5.8 ounces” will be a deal breaker, and I can understand that if weight is a concern, but that doesn’t stop this from being an excellent knife if you enjoy heavier blades. As for purpose here, the ZT 0550 is a hard use tool all the way. Every aspect of this knife has been overbuilt and the Hinderer pedigree shines here at every angle.

The on blade the 0550 is a modified drop point made from thick stock and features a high flat grind. If you run your fingers behind the edge you can feel how thick this knife is. The blade steel actually thickens out as you reach the tip – it’s pretty crazy. I never recommend prying with a knife, but if you had to use a knife for prying, I think the 0550 would hold up better than the average knife. The caveat to this kind of design is that the knife is not the best slicer. That’s the trade off.

The 0550 features CPM S35VN. S35VN was designed to be a successor to the wildly popular S30V blade steel. The knife community has met S35VN with some skepticism so I took it upon myself to really cut with this knife, and I sharpened the blade a couple times. I feel like S35VN is really good stuff. It sharpened easily, held a nice edge and I had no issues with rust or corrosion. I also feel like the steel exhibited good toughness, as the blade never chipped out or warped in my use. Of course, this is just one knife (with a very thick blade) and I am only one guy. It’s going to take a lot more experience to fully appreciate S35VN. If my opinion ever changes, I’ll be sure to update the review. For the time being I’ll continue to use and enjoy my 0550.

Handle, Ergonomics and Pocket Clip

The 0550 has a handle made of G10, stainless steel, and titanium. The non-locking side has a thick piece of G10 over a painstakingly milled out stainless steel liner. The locking side is made of a solid slab of 6AL4V titanium and features a Hinderer lockbar stabilizer to prevent over-extension of the lock. The knife has a flow-through design with thick pillars securing the two handle pieces together. Hinderer also makes aftermarket G10 scales for both the 0551 and 0550 in pretty much any color you want. This is a really cool way to add some style and make this knife your own.

The 0550 has solid ergonomics and the knife works in a variety of grips. Starting things off, we have a nice finger choil and a thumb ramp with coarse, but very purposeful jimping. This gives you great control over the blade and really fits my fingers well. The handle itself is thick and it fills the hand nicely. It’s a boxy handle, but the corners have been slightly rounded for comfort. I find the 0550 to feel very nice in both forward and reverse grips and I’m pleased with the amount of traction this design offers.

The pocket clip is a piece of steel with the Zero Tolerance logo lightly milled onto it. Like many other Zero Tolerance knives, this is the same clip found on the Kershaw Skyline. For some that might be a turn off, but I’m pleased with the great retention and deep carry of this design. I also am a huge fan of how ZT drilled and tapped this handle for 4 corners carry.

Deployment and Lockup

The 0550 features chunky ambidextrous thumb studs. There is plenty of room to get your thumb behind it and give the knife a nice flick. ZT selected thick phosphor bronze washers, and the knife is extremely smooth. This is a heavy blade, and it takes a little effort to get it moving with any speed, but I’ve found deployment on the 0550 to be incredibly smooth and reliable.

The 0550 features an ultra thick titanium frame lock. This is one of the thickest pieces of titanium I have ever seen used for a lock. The lock engaged early and provides a solid lockup. I am extremely impressed not only by the thickness of the lock, but by how well the lock has been designed. I typically don’t flick open framelock knives, but the 0550 seems to like it. Having flicked the knife open knife hundreds of times the lock still engages as early as it ever did. To me this is a great achievement and is a testament to how well this knife has been made.

The Hinderer lockbar stabilizer ensures that you will not over-extend the lock bar as you disengage it. This will prolong the life of your lock and is a really nice feature to see. In my video I said that the stabilizer was the cherry on top of this delicious ice cream sundae of a knife. I don’t typically have a sweet tooth, but I still stand by that statement.

Zero Tolerance 0550 Review – Final Thoughts

The ZT 0550 is an absolute home run of a knife. I love pretty much everything about this knife. The materials are great, the level of fit and finish is phenomenal, it features an awesome Rick Hinderer design, outstanding options for carry, excellent ergonomics and the best frame lock I have ever seen in a production blade. Given everything you get, it’s difficult to believe that the 0550 retails for only $200.

For some the only reasonable criticism here is the weight (and perhaps that the blade is so thick it doesn’t slice particularly well). But fans of big knives, fans of hard use knives, and fans of big hard use knives made in America will absolutely love this offering from Zero Tolerance. I am walking away extremely impressed by this knife and can easily recommend it if big tactical folders are your thing.

Zero Tolerance has truly raised the bar with this one providing a great knife and outstanding value to the consumer.

Zero Tolerance 0550 – $199.95
Retail Price: $250.00
You Save: $50.05
from: BladeHQ

I recommend purchasing the ZT0550 from BladeHQ or Amazon.com.