Blade features a Katana edge scalpel-like sharpness, hand-honed using the traditional 3-step Japanese Honbazuke method. The potent core of SG2 micro-carbide powder steel is protected by 100 layers of steel. 5000MCD, Cryodur ice-hardened; 63 Rockwell hardness, flower Damascus pattern provides added durability. Every Miyabi knife does need extra care, it need proper TLC!