Yoshihiro Aoko(blue Steel) Suminagashi Damascus Wa Gyuto Japanese Sushi Chef Knife 9.5 Inch (240mm) with Nuri Saya Cover The Gyuto knife is the most versatile and essential of all chef knives used to chop, slice, and dice fresh produce like meat, fish, and vegetables. Blue Steel #2 High Carbon Steel Core (HRC 62) for its exceptional sharpness, high edge retention, and ease of sharpening. Sandwiched between two softer layers of steel to add to its durability and ease of maintenance. Equipped with a handcrafted D-shaped Shitan Rosewood Handle. Lacquered Nuri Saya Cover Included. Hand wash with mild cleanser; NSF Approved; Handmade by skilled tradesmen in Japan.