Opening mechanisms include manual thumb stud and flipper designs, assisted openers, and automatic out-the-front and side-open models. Blade steels range from 8Cr13MoV and AUS-8, which sharpen fast and need frequent touch-ups, through D2 and 154CM, to high-vanadium grades that hold an edge far longer but need diamond stones. Handle materials are listed per item because grip changes completely between G10, FRN, aluminium and natural wood.
