Sandpaper consists abrasive particles glued to a sheet of paper or cloth. The size of the abrasive particles is used to classify the sandpaper and usually correlates with use.


Macrogrit sandpaper has larger particles (>= 60 microns).

Microgrit sandpaper has smaller particles.


Particle Diameter


> 500 microns

extra coarse

300 to 500


190 to 299


101 to 189


60 to 100

very fine, macrogrit

40 to 59 microns

very fine, microgrit

25 to 39 microns

extra fine

15 to 24 microns

super fine

< 15 microns

ultra fine


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