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Grit Table / wheels / Green silicon-carbide bench wheels

Product, no maker data

Green silicon-carbide bench wheels

Grinding wheel

This line has a measured particle size, rare for a natural stone. The microns come from published measurement rather than a grit-number estimate, so they are drawn at full strength, not faded.

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.

Particle sizemicrons, log
100
coarserfiner
inkmeasured or standardmaker figureour estimate
shapeknown distributionpoint, spread unknown
60 gritStandard-defined
260 µm

ANSI B74.12 / FEPA-F (ISO 8486-1) bonded-abrasive grit; micron is the FEPA-F d50 median for that grit.

spread not published · reference scale about #60

80 gritStandard-defined
185 µm

ANSI B74.12 / FEPA-F (ISO 8486-1) bonded-abrasive grit; micron is the FEPA-F d50 median for that grit.

spread not published · reference scale about #80

100 gritStandard-defined
129 µm

ANSI B74.12 / FEPA-F (ISO 8486-1) bonded-abrasive grit; micron is the FEPA-F d50 median for that grit.

spread not published · reference scale about #120

120 gritStandard-defined
109 µm

ANSI B74.12 / FEPA-F (ISO 8486-1) bonded-abrasive grit; micron is the FEPA-F d50 median for that grit.

spread not published · reference scale about #130

150 gritStandard-defined
82 µm

ANSI B74.12 / FEPA-F (ISO 8486-1) bonded-abrasive grit; micron is the FEPA-F d50 median for that grit.

spread not published · reference scale about #170