Yoshihiro Nashiji High Carbon White Steel #2 Gyuto Japanese Chefs Knife (8.25'' /210mm) Grade : Black-Forged (Kurouchi) / Knife Type: Gyuto (Japanese Chef's ) Knife Steel Type: White Steel #2 (High Carbon Steel, will rust and oxidize if not properly maintained) Blade: Double-Edged (50/50) / Blade Length: Available in 8.25 (210mm), 9.5(240mm) Handle Material: Handcrafted Chestnut Wood Handle Hardness Rockwell C scale: 63-64