Sujihiki Kurouchi 210 mm (8.3 in) Aogami (Blue) #2 Double-Bevel

• Type: Sujihiki
• Finish: Kurouchi 
• Blade Length: 210 mm (8.3 in) 
• Construction: Hon-Warikomi
• Core Edge Steel: Aogami (Blue) #2 
• HRC (Rockwell Hardness): 61-63
• Handle: Magnolia or Walnut
• Bevel: Double-Bevel 
• Place of Origin: Tosa, Japan

Blue (Aogami) #2 (Hitachi Metals Ltd.) is made by adding Chromium and Tungsten / Wolfram to White Steel #2. This results in increased toughness and the production of hard carbide molecules, which improve edge retention. Many knife users have noted that while Blue Steel #2 is very similar to White Steel #2 in terms of edge sharpness, it has slightly superior edge retention.