The ZT Sub-Frame Lock is our patented variation on the traditional frame lock that lets us make a slimmer knife while providing a strong, secure lock. In this case, a piece of the lighter weight frame, often carbon fiber, is machined out and a piece of steel is riveted into its place. This piece of steel acts just like a standard frame lock. When the blade is open, it moves into position behind the blade tang, locking it open.
Zero Tolerance 0762Zero Tolerance
Dominating the specialty, folding pocket knife market, ZT creates high-quality working tools and knives for hard-use customers. ZT's initial line o...View full details