Zero Tolerance is a brand of Kai USA Ltd. It was born in 2006 with a line of knives made in the USA, which would meet the needs of military and law enforcement, as well as firefighters and emergency medical personnel.
The first products were combat knives, but the line has since expanded to include a variety of utility and premium knives. From larger and heavier outdoor knives to slimmer and lighter ones for everyday use. ZT knives always provide knife owners with superior quality.