Detailed Spec

Brand: Hitohira ひとひら
Product Type: Natural Stone
Size: Type 40
Producing Area: Kyoto/ Japan
Mine: Ozuku
Recommended Usage: Kitchen Knife (Edge), Straight Razor, Chisel, Plane
Hardness (5 = Very Hard): 4.3
Grain Scale (5 = Very Fine): 4
Sharpening Speed (5 = Very Fast): 3.6
Soaking Requirement: Not required
Size: 210 x 72 x 40mm
Weight: 1490g
Revied by Naoki Tsuda
Update: September 30, 2025