A Folding Knife to Rock Your World

Zero Tolerance Knives (ZT Knives) is a knife brand of Kai USA, headquartered in Tualatin, Oregon, United States. Both Zero Tolerance and Kai USA are members of the KAI Group, a global cutlery company.

The first Zero Tolerance knives were produced in 2006 alongside Kai USA’s Kershaw Knives brand. The original line of ZT Knives included collaborations between custom knifemaker Ken Onion and Strider Knives. Early products were combat knives, but Zero Tolerance later expanded its market to include more general use knives. Currently, all ZT products are manufactured in Kai USA’s Tualatin, Oregon facility.

Folding knife video

Zero Tolerance New Products @ Blade Show 2015