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Sub-Frame Lock

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.