Very strong "KARASU" pattern. It's hard and fine, so it requires ingenuity.
Detailed Spec
Brand: Hitohira ひとひら Product Type: Natural Stone Size: Koppa Producing Area: Kyoto/ Japan Mine: Ozuku Color: Karasu Recommended Usage: Kitchen Knife (Edge), Straight Razor, Chisel, Plane Hardness (5 = Very Hard): 4.3 Grain Scale (5 = Very Fine): 4.4 Sharpening Speed (5 = Very Fast): 3.1 Soaking Requirement: Not required Size: 198 x 80 x 28mm Weight: 823g Revied by Naoki Tsuda Update: November 19, 2025
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