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Grit Table / waterstones / Suehiro Gyomu (W-8 / G-8)

Product, maker figures

Suehiro Gyomu (W-8 / G-8)

Waterstone

The maker publishes these figures. A single value per grade, no distribution given, so each is drawn as a point.

Each grade below shows its size in microns, its spread (the published distribution, where a maker or standard gives one; most makers publish none), and where that size lands on the reference scale, a shared yardstick for reading grit numbers across makers.