Aogami No.2 (Hitachi Metals Ltd.) is made by adding Chromium and Tungsten / Wolfram to Shirogami No.2. This results in increased toughness and the production of hard carbide molecules which improve edge retention. Many knife users have noted that while Aogami No.2 is very similar to Shirogami No.2 in terms of edge sharpness, it has slightly superior edge retention.

Suminagashi translates as floating ink and refers to the beautiful marbled wave-like patterns that extend through the blade from the tip to the heel, unveiling a new mosaic with every sharpening.