Zero Tolerance Knives is a brand of knives from KAI that focused on building professional-grade combat knives designed to survive harsh conditions. These are tough, high quality knives with high end steel, overbuilt locks, assisted openings and all sorts of other cool goodies that tactical knife enthusiasts enjoy.
I recommend buying Zero Tolerance knives at Amazon.
Zero Tolerance Knife Reviews:
I have had the pleasure and fortune to review a number of ZT knives. What follows is all of my Zero Tolerance reviews:
- Zero Tolerance 0470 Review
Reviewing the [easyazon_link identifier="B07J2R411D" locale="US" tag="brdfkdfk-20"]Zero Tolerance 0470[/easyazon_link] is about as safe as it gets. We have reviewed countless Sinkevich / Zero Tolerance designs. It is ... continue reading
- Zero Tolerance 0609 Review
This is a reader request. Proof that if you twist my arm hard enough I'll review the latest full titanium Zero Tolerance flipper. Only for you guys. Buy the Zero Tolerance 0609 at BladeHQ [easyazon_cta align="c ... continue reading
- Zero Tolerance 0450CF Review
I don't know about you, but sometimes I lust after knives for months, or even years, before pulling the trigger. That was the case with this [easyazon_link asin="B01B77720A" locale="US" new_window="default" nofollow=" ... continue reading
- Zero Tolerance 0055 Review
Continuing on with my recent interest in reviewing unusual knives, the Zero Tolerance 0055 caught my eye for obvious reasons. This is an unusual looking knife. Designed by acclaimed Brazilian custom knifemaker Gustavo ... continue reading
- Zero Tolerance ZT 0450 Review
Despite positioning itself as a maker of hard use tools for hardcore individuals, Zero Tolerance has always had more universal appeal than its marketing would suggest – and I don’t think the company’s appeal has ... continue reading
- Zero Tolerance 0900 Review
Alright, peer pressure, you win. You finally got to me. After holding out for god knows how long, I finally jumped on the titanium-flipper-framelock (henceforth TFF) bandwagon. Not just any TFF, mind: if I’m challen ... continue reading
- Zero Tolerance 0888MAX
First of all, this is not really a review. The 0888MAX is a pure collectible for me. A collectible I was able to acquire through a trade with my good friend Andrew of the Edge Observer. The knife has been admired and ... continue reading
- Zero Tolerance 0452CF Review
When it comes to folding knives, I am extremely selective in what I choose to carry, especially if it is a blade that I am going to carry for self-protection. It has to be light, reliable, sharp, and geometrically ef ... continue reading
- Zero Tolerance 0808 Review
Zero Tolerance has had some interesting releases in 2015. What especially intrigued me was their addition of a few smaller folders to the line up. The 0450, 0900 and
- Zero Tolerance 0620CF Review
I have given Zero Tolerance over the past year. So I actually had to pause and think when my pre-order for the 0620CF popped into my inbox. I try to feature a variety of knives from different manufacturers. Would I pu ... continue reading
- Zero Tolerance 0562 cf Review
Updated: 05/30/2016 By this point we have seen quite a few of Hinderer / KAI collabs hit the market, and I have covered them extensively on the blog. We started with the heavily built 0550, moved to the critically ac ... continue reading
- Zero Tolerance 0801 Review
Updated: 11/29/2015 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 ... continue reading
- Zero Tolerance 0454 Review
Updated: 11/29/2015 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 ... continue reading
- Zero Tolerance 0566 Review
Last Updated: September 22,2017 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 ... continue reading
- Zero Tolerance 0560 Review
Finally! A Zero Tolerance 0560 review. It feels like forever ago since the 560 was first announced at the 2011 BLADE Show. Since then I have heard the rumors, ogled the pre-production photos, and even caught a glimpse ... continue reading
- Zero Tolerance 0350 Review
Last Updated: November 22, 2016 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 ... continue reading
- Zero Tolerance 0550 and 0551 Review
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 spe ... continue reading
- Zero Tolerance 0300 Review
When Zero Tolerance first came on the scene the 0300 is one of their knives that really caught my eye. The graceful curves reminded me of some deep sea mammal while the construction reminded me of a semi truck. So I w ... continue reading
Zero Tolerance Knives – Company History
Zero Tolerance (ZT) has only recently appeared on the knife scene. I want to say this line is just a couple years old, but they have already made a big impression on the knife world. ZT partnered up early with famed designer Ken Onion to come up with some wicked designs. Ken has since moved on to CRKT, so it will be interesting to see what direction ZT goes into.
My guess is whatever Zero Tolerance does, they will do great. They have recently done some collaborations with another knife industry legend, Rick Hinderer of Hinderer knives. Between their collaborations with Rick Hinderer and Ken Onion, Zero Tolerance is coming out with some seriously heavy duty folders. I love the thick framelocks and ultra-high end steels ZT keeps using. This is definitely a brand to watch, and I will be doing many more ZT reviews in the future.
Zero Tolerance is also a proud partner with the Paralyzed Veterans of America (PVA). ZT donates a portion of the proceeds from every sale of a ZT knife to the PVA. This is super cool in my book and makes purchasing a Zero Tolerance blade just a little more rewarding – they couldn’t have picked a more worthy cause.
Best Zero Tolerance Knives
For those that don’t want to sift through a bunch of reviews and simply want the best Zero Tolerance knives, I’ve gone ahead and made a list for you here. If you are looking for in depth reviews, then scroll up to our review section.
Zero Tolerance 0562CF – Without a doubt ZT’s collaboration with Rick Hinderer is their most successful collaboration, and the 0562CF is at the top of the heap. It’s a streamlined and modernized version of their original 0560, the knife that arguably revolutionized the titanium framelock flipper craze with a strong detent, bearings, and a milled out titanium framelock. The 0562CF takes it up a notch with a slimmer, sleeker design, M390 Blade Steel, and the classic Hinderer styling that dominated the production knife world for years.
Zero Tolerance 0620CF – The 0620CF is a collaboration with another iconic knife maker: Ernest Emerson. What makes the 0620CF so cool is that it gives you a Emerson design without all the weird Emerson idiosyncrasies. You get a V grind, a V edge, a swappable pocket clip, a robust titanium frame lock with a steel lock bar insert, M390 blade steel, and ZT’s impeccable fit and finish. All at a price comparable to a regular Emerson! It’s truly an amazing knife for Emerson fans or those seeking out a high end hard use folder.
Zero Tolerance 0452CF and the ZT 0450CF – This is another collaboration. This time with Russian knifemaker Dmitry Sinkevich. Sinkevich is the guy who brought us the covetable 0454, one of the most bad ass knives I’ve ever reviewed. Of course the 0454 is a limited edition piece. The 452CF and 450CF are mass production knives. Still beautiful in their own way, but commonly available and good choices for daily carry. There is nothing else like the low slung profile of a Sinkevich design.
Zero Tolerance Knives Design Influences
Here are a few themes that I think help to define Zero Tolerance knives:
Big Name Collaborations – Zero Tolerance has built its brand on collaborating with high end knifemakers. It all started out with their collaborations with Ken Onion. When Ken moved to CRKT and stopped designing for KAI, Zero Tolerance turned to Rick Hinderer, Ernest Emerson, Todd Rexford, Dmitry Sinkevich, and many other top tier makers. Zero Tolerance’s manufacturing skills combined with these top shelf designers is a big part of ZT’s success.
USA Made Products – Zero Tolerance knives is all about making their knives in the USA. Thats on all their packaging, and is featured prominantly on their marketing materials. The idea is not to compromise, and for ZT that means making their stuff stateside rather than overseas.
Premium Materials – Zero Tolerance is KAI’s premium line, and they source the best materials for their builds. Carbon fiber, super steel, titanium, custom hardware. This is standard issue on many ZT knives. Their limited releases get even fancier, with composite steel blades. They are always trying to push the envelope.
Zero Tolerance Knives – Final Thoughts
You really can’t go wrong with a Zero Tolerance knife. They are all super well built to high tolerances with top shelf materials. And if you are a fan of titanium frame lock flippers then you will have a hard time beating a ZT with a framelock flipper at this price point. They are always amazing flippers.
I think one mistake you can make is going too big. If you like big knives then go right ahead, but if you are looking for an urban or suburan EDC, then a lot of ZTs are just too big to be practical. But stuff like their 0450, the 0900 and even their mid sized offerings like the 0808 are practical options for daily carry.
And if you like the big bold knives, and high end limited editions, then Zero Tolerance has you covered. I think their recent limited releases are a little less exciting than offerings like the 888 and 0454, but they are still cool, and who knows, they may have something equally interesting around the corner.