Understanding Sanding Operation

Average Stock Removal

Grit and corresponding depth of cut for average stock removal.
Grit	Depth of Cut
60	.035-.045
80	.020-.030
100	.015-.020
120	.010-.012
150	.006-.008
180	.004-.005
220	.003-.004

Average Depth of Scratch

Grit and corresponding depth of scratch for average depth of scratch.
Grit	Depth of Scratch
60	.022-.025
80	.015-.018
100	.010-.012
120	.008-.010
150	.005-.006
180	.004-.005
220	.003-.004

Example of 1/32" or .031 Stock Removal

Grit Sequence

Grit, stock removal, and depth of scratch for an example case of 1/32" or .031 stock removal.
Grit	Stock Removal	Depth of Scratch
100	.018	.011
120	.010	.008
180	.004	.004

Do not skip more than one abrasive grit at a time (e.g. 60-120). This will put excessive wear on belt and shorten belt life; scratches from previous grit may also not be removed.