AXIS locking mechanism; Modified sheepsfoot blade style with ambidextrous thumb-stud opener N680 highly corrosion resistant blade steel (57-59HRC) 440C hook-shaped safety cutter (58-60HRC); Hook length is 2"; Hook opening is 0.5". Textured, black G10 handle with full stainless steel liners and a reversible tip-up deep-carry pocket clip Carbide glass breaker Specifications Blade Length: 3.50" (8.89cm) Hook Length: 2.00" (5.08cm) Blade Thickness: 0.130" (3.02mm) Open: 8.20" (20.82cm) Closed: 4.70" (11.93cm) Weight: 5.10oz (144.58g) Handle Thickness: 0.53" (13.46mm) Sheath Sold Separate: Available in Black or Coyote Made in USA