Aogami Series. 13" overall. 8.3800000000000008" blue steel blade. Black smooth wood handle. Stainless bolster(s). Full tang. Full tang. The cutting core is made from Japanese Aogami steel produced by Hitachi Metal, adding chromium and tungsten to Japanese Shirogami steel. The Aogami steel core is clad with 410 stainless steel on each side. HRC: 61-62. Boxed.