Boker Magnum 02MB540 Breacher Knife with 4 1/4 in. 440 Stainless Steel Blade, Brown Solid blade made of 4.8mm thick 440C stainless steel Breacher is ideal for hacking, levering and digging Rugged G-10 handle scales are screw mounted and provide a comfortable and secure grip Blade length: 4  in. Overall length: 9 in. Weight: 9.4 oz. Limited Lifetime Warranty