The hefty M16®-04Z Big Dog offers a larger dual grind Tanto-style blade. These are full-size working knives suited to large hands and heavy-duty tasks. It uses InterFrame construction, tough, textured glass filled nylon scales over a 420J2 stainless steel liner InterFrame. We assemble the handle with superior offset Torx® fasteners. The handle is exceptionally rigid and fills the hand perfectly. Automated Liner Safety Carson Flipper Opening Glass-Reinforced Nylon Handles