Blade Material: CPM-D2 Tool Steel Blade Thickness: 0.124 (3.15 mm) Blade Hardness: 60-62HRC Blade Style: Tanto Blade Finish: Cobalt Cerakote A solid EDC tool for hard-use utility tasks, the new 431BK-1 Redoubt variant doubles down on its unrelenting workhorse reputation with a new tanto blade profile for optimal everyday preparedness. This knife is ready to work with CPM-D2 blade steel with a Cobalt Cerakote finish for improved toughness and strength and Ranger Green Grivory handle scales with a Forest Green textured Grivory overlay. Its rugged non-slip grip * bare-handed or with gloves * provides reliability you can feel through the toughest tasks.