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Zero Tolerance

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ZERO TOLERANCE—Continuing a Tradition of Excellence

Since 1974, Kai USA (Kershaw) has brought you what you have come to expect—the very highest quality and most innovative designs available in the knife market today.

With our new line of Zero Tolerance Combat Knives, the legacy continues. We have teamed up with Ken Onion (Kershaw Knives) and Strider Knives to bring you a new series of professional-grade combat knives built to survive the harsh, real-world situations that confront you every day.

We call it ZT, Zero Tolerance. And that is our ultimate goal—Zero Tolerance in design, Zero Tolerance in function and Zero Tolerance in performance.

Whether you're in the Military, Law Enforcement, Fire and Rescue, on a Response Team, or are an EMS professional, if you demand only the best from your equipment, you will quickly recognize the many benefits that ZT has to offer. Because when you've got a life-and-death job, you need tools that can give you an edge. Zero Tolerance Knives are those tools.

$200.00
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Yes... The 0022 is the smallest Zero Tolerance ( ZT ) knife we've ever made. And yes, it's an impressive piece of engineering. Designed by Tim Galyean...
$248.00
$310.00
The Zero Tolerance 0640 is a brand new ZT/Ernest Emerson collaboration that provides both utterly practical design and boldly eye-catching style. The...
$240.00
$300.00
Zero Tolerance 0470 This handsome new design from ZT and Dmitry Sinkevich begs to take first place in your collection. Not that the 0470 is only a safe...
$160.00
$200.00
The Zero Tolerance 0770 is a Limited Edition model that features an aluminum handle and assisted opening. It is a stream-lined version of the award...
$180.00
$225.00
Zero Tolerance provides a blacked-out, refined alternative to the original 0450 with the 0450CF. The sophisticated ZT 0450CF is a smaller option in the...
$189.95
$285.00
Danish knife-maker Jens Anso realized a long-time dream when he joined the Zero Tolerance team. One of the first results of the collaboration with Jens was...
$240.00
$275.00
To make this amazing knife more readily available, ZT has created a new-for-2015 version based on the original’s streamlined form and...
$260.00
$300.00
ANY WAY YOU SLICE IT, THE HINDERER 0562CF IS A WINNER! The cousin of the 0562, this ZT features the same special Rick Hinderer flat-ground...
$156.00
$195.00
IS THIS THE PERFECT ZT EVERY DAY CARRY KNIFE? Slightly smaller. Slightly lighter. Just as aggressive. The 0350 is 10% smaller and weighs almost three...
$141.40
$175.00
THIS COULD BE THE ZT KNIFE YOU'VE BEEN WAITING FOR The Zero Tolerance 0350 gets a lot of love from knife enthusiasts. Yet there are those who say...
$145.44
$180.00
A MORE COMPACT VERSION OF THE 0560 Zero Tolerance Knives and Rick Hinderer team up again to create the new Zero Tolerance 0566. More compact than its...
$193.92
$240.00
ELMAX STEEL + TITANIUM + ZERO TOLERANCE + TODD REXFORD = ONE AMAZING KNIFE Zero Tolerance and custom knifemaker Todd Rexford join forces to produce the...
$169.68
$210.00
CLASSY LOOKS AND TOP PERFORMANCE JUST COULD MAKE THIS THE PERFECT EVERY DAY CARRY KNIFE The 0566CF may look classy with its new carbon fiber front scale,...
$202.00
$250.00
ANY WAY YOU SLICE IT, THE HINDERER 0562 IS A WINNER! Zero Tolerance and Rick Hinderer teamed up to build the new 0562 with its exclusive Hinderer...
$200.00
$250.00
The Zero Tolerance 0808 is ZTs latest piece of pocket technology. It's a collaboration between ZT and custom knifemaker Todd Rexford and it's based on his...
$212.00
$265.00
The Zero Tolerance 0452 flipper is a streamlined version of the award-winning 0454 folding knife designed by Dmitry Sinkevich. It has a satin/stonewash...
$229.00
$400.00
The Zero Tolerance 0850 is a bold and exciting collaboration effort between Dmitry Sinkevich and Todd Rexford. It is based on a fantastic custom knife the...
$180.00
$225.00
The Zero Tolerance 0450CF was designed by Dmitry Sinkevich and is one of Zero Tolerance's best-selling knives. But some knife owners have been asking for...
$144.00
$180.00
The Zero Tolerance 0770 is a Limited Edition model that features an aluminum handle and assisted opening. It is a stream-lined version of the award...
$240.00
$300.00
Zero Tolerance and Belarusian custom knife maker Dmitry Sinkevich have teamed up to produce the exquisite 0456. The ZT 0456 offers the premium cutting...
$220.00
$275.00
The 0095BW is built with premium quality materials—from its S35VN blade steel to its solid titanium handles. S35VN ensures the 0095BW offers a reliable...
$266.00
$350.00
Zero Tolerance and Todd Rexford teamed up to create the 0804CF which is based on Todd’s custom knife, the Gamma. The 3.9 inch blade is made of fine-grained...
$160.00
$200.00
The original Zero Tolerance 0454 was an award-winning collaboration between ZT and custom knife designer Dmitry Sinkevich. But it was also a very...
$202.00
$250.00
ZT and Emerson are back for more with the 0630. The powerful upswept tactical blade, excellent for slicing cuts, is made of Crucible S35VN. S35VN is...
$100.95
$125.00
The Zero Tolerance 0010EB tactical pen is a covert self-defense tool that make a crucial difference when you need it most. This ZT-worthy...
$100.95
$125.00
The Zero Tolerance 0010BLK tactical pen is a covert self-defense tool that make a crucial difference when you need it most. This ZT-worthy...
$192.00
$240.00
So which folder will it be today? Easy call. This one. Designed by custom knifemaker Les George and premium-built by Zero Tolerance. The 0900 is compact...
$150.00
$250.00
Zero Tolerance and Emerson Knives put their hard-use heads together to create the new 0620.It features a blade of ELMAX® powdered steel in a modified...
$242.40
$300.00
Zero Tolerance and Emerson Knives put their hard-use heads together to create the new 0620CF. It features a blade of Böhler M390 powdered steel...
$222.20
$275.00
Based on Rick Hinderer’s Fieldtac knife, the new Zero Tolerance 0180 is a smaller and lighter fixed-blade knife, yet it’s built to handle tough duty....
$274.72
$340.00
THE CLASSIC ZT "BEAST" SHOWS ITS STRIPES ZT is proud to offer the model 0301, a top-quality, hard-use knife equipped with the patented SpeedSafe...
$244.36
$325.00
Based on Rick Hinderers crave-worthy XM-18, the new ZT 0560 is one completely amazing knife. First, the blade... It's pure ELMAX® powdered steel for the...