Detailed Spec

Brand: Hitohira ひとひら
Product Type: Natural Stone
Producing Area: Kyoto/ Japan
Mine: Okunomon
Recommended Usage: Kitchen Knife (Edge), Kitchen Knife (Bevel), Chisel/ Planes, Hagane Polish, Kasumi finish with mud
Hardness (5 = Very Hard): 3.3
Grain Scale (5 = Very Fine): 3.5
Sharpening Speed (5 = Very Fast): 4
Soaking Requirement: Not required
Size: 203 x 75 x 38mm
Weight: 1379g
Revied by Naoki Tsuda
Update: 2月 27, 2026