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San-Mai Knife Blade Steel RWL34 Core , Out Layer 1CR17Ni7 Stainless Steel for DIY Knife Making
San Mai Steel is a traditional technique of blade-making that encompasses three layers steel in its construction.
Out layer two softer steel is 1CR17Ni7 Stainless Steel hardened to HRC45.
Core steel is RWL34 hardened to HRC60 for getting a durable great cutting edge.