Chart: Abrasives--Micron vs. Sandpaper grits
by Addie Kidd
Published: September 25, 2008
There are many different systems for categorizing the grits of sandpaper. Here are the equivalents from two common systems.
Micron Grades (µ).......Approximate sandpaper-grit equivalent
80µ...................................180
60µ...................................220
40µ...................................320
30µ...................................400
15µ...................................600
9µ.....................................1200
2µ.....................................6000
1µ.....................................8000
The abrasives are listed from top to bottom in order of coarsest to finest.
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