Zero Tolerance is a brand of Kai USA Ltd. The ZT brand first made its appearance in 2006 when we saw a place in the market for a Made-in-USA line of hard-use knives that would meet the needs of professionals in the military and law enforcement, as well as other first responders, such as firefighters and emergency medical personnel.
The brand quickly built a small, but dedicated fanbase, including those who weren’t first responders or military members. Whatever walk of life they came from, ZT owners fell in love with the hard-use designs and premium materials. They called the knives “real beasts” and “proudly overbuilt.”
