Morihei Ozuku Natural Stone Koppa (No.705) Chisels and a double buffalo horn

and a double buffalo horn

Size: 78 x 203 x 40mm

one of the most challenging techniques in sharpening

While both types of Kurouchi finishes can fade over time

Morihei Ozuku Natural Stone Koppa (No.705) Chisels and a double buffalo hornWe are no longer producing this item or with the same number. Please understand that showing price, description and specs might be old information. Good for straight razor Detailed Spec Brand: Morihei Product Type: Natural Stone Size: Koppa Mine: Ozuku Hardness (5 = Very Hard): 5 Grain Scale (5 = Very Fine): 5 Sharpening Speed (5 = Very Fast): 4 Soaking Requirement: Not required Size: 148 x 88 x 27mm Weight: 780g Update: 5 30, 2026