Optimal Diamond

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

while Edge Pro offers a limited assortment

the angle of the horizontal shaft changes

Alternatively

suehiro gokumyo for edge pro Grit:20000 Optimal DiamondGokumyo 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