Nakiri 165 mm (6.5 in) White#1Type: Nakiri Finish: Kurouchi Blade Length: 165 mm (6. 5 in) Construction: Hon Warikomi Core Edge Steel: Shirogami (White) #1 HRC (Rockwell Hardness): 60 61 Handle: Magnolia Bevel: Double Bevel Place of Origin: Tosa, Japan Made up of Carbon: 1. 25 1. 35%, Manganese: . 20 . 30%, Phosphorus: . 025%, Sulfur: . 004%, Silicon: . 10 . 20% Almost identical to Blue No. 1 steel except for the absence of Chromium and Tungsten, this is a very pure Carbon steel