This video tests the durability of various knives by striking their spines against shale rocks. The Buck Nighthawk (420 stainless) and the Ka-Bar/Ontario Rat 7 (1095 carbon steel) proved surprisingly tough. In contrast, a Bulgarian AK47 bayonet failed catastrophically, and a Cold Steel Chaos experienced handle failure, highlighting design weaknesses despite blade integrity. The test emphasizes the importance of steel type and heat treatment for durability.
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