Nakiri Kurouchi 165 mm (6.5 in) Aogami (Blue) #1 Double-Bevel

• Type: Nakiri
• Finish: Kurouchi
• Blade Length: 165 mm (6.5 in)
• Construction: Hon-Warikomi
• Core Edge Steel: Aogami (Blue) #1
• HRC (Rockwell Hardness): 62-63
• Handle: Magnolia
• Bevel: Double-Bevel
• Place of Origin: Tosa, Japan

Blue Steel #1 (Hitachi Metals Ltd.) is very similar to Blue Steel #2, but the additional Carbon and Tungsten / Wolfram result in even better edge retention and toughness. The steel is perhaps most commonly seen in high-grade Japanese traditional knives.