All Gokumyo stones are 5-6 mm thick

21-24 mm wide

Norton Waterstones should be used with water as a lubricant

Narrow Narrow glass on aluminum blank Working area 152 x 12 x 6 mm (6" x ½" x ¼") Suitable for recurved blades

the angle of the horizontal shaft changes

suehiro gokumyo for edge pro Grit:20000 All Gokumyo stones are 5-6Gokumyo Sharpening Stones are used for sharpening knives on Hapstone and Edge Pro knife sharpeners. All Gokumyo stones are 5 6 mm thick, 20 22 mm wide, and are mounted on high quality aluminum blanks. Gokumyo is the high end line of sharpening stones by Suehiro. Gokumyo stones are universal and can be used to sharpen knives of any steel including high carbon, vanadium, and chromium steels. Gokumyo is preliminarily lapped and does not require lapping