The USAF Survival knife is probably one of the best all-round survival knives. This is an issue survival knife for US Air Force and Navy pilots. With a high carbon parkerized blade, it has a saw edge on the top of the blade, a hardened hexagonal butt for hammering, a steel guard with 2 holes for lacing onto shafts to make a spear, and a built-up leather washer handle. The metal tipped sheath is riveted for strength, and includes a small pouch with a carborundum stone, and a leg tie. Overall Length: 9.5", Blade: 5". Wt. 13 oz.