Sandpaper Grit Chart

Sandpaper Grit Chart. The typical diameter of the sandpaper grit ranges between 336 to 425 micrometers. The chart includes a list of grits and their uses.

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The chart includes a list of grits and their uses. Like wire sizes, smaller numbers actually mean larger. Scale grit particle size in microns particle size in inches 4.5 1842 0.07252 p12 1815 0.07146 p16 1324 0.05213 16 4 1320 0.05197 p20 1000 0.03937 m 20 3.5 905 0.03563 p24 764 0.03008 a 24 3 715 0.02815 30 2.5 638 0.02512 c p30 642 0.02528 36 2 535 0.02106 r p36 538 0.02118 40 1.5 428 0.01685 o p40 425 0.01673 50 1 351 0.01382 g p50 336 0.01323 60 0.5 268 0.01055