Classification of Emery Stone
- According to the size of the abrasive; very large, large, medium, fine, very fine
- According to its abrasive feature; aluminum oxide, silicon carbide, diamond, CBN
- According to the binder; ceramic, bakelite, rubber, graphite, magnesite, silicate
- According to their hardness; very hard, hard, medium, soft, very soft
- According to their texture; very often, often, moderately, infrequently, very rarely
- According to the purpose of use; surface grinding, external grinding, internal grinding, screw grinding, tool grinding, cutting, honing, deburring, center grinding, centerless grinding, gear grinding
- According to their shapes: Flat, shaped, conical, bowl, circlip, cylinder, handle, screw, rod, hanger.