Yoshihiro Kurouchi Black Forged Suminagashi Damascus Blue Steel #1 Utility Slicer Kiritsuke Japanese Chef Knife Rosewood Handle 8.25'' (210mm) Grade: Suminagashi / Knife Type: Utility Kiritsuke (Utility Knife) Steel Type: Blue Steel #1 High Carbon Steel Blade: Double-Edged / Blade Length: 8.25" (210mm) Handle Material: Octagonal-Shaped Shitan Rosewood Handle Hardness Rockwell C scale: 64-65