Grit size is an extremely important characteristic when deciding the right abrasive for your task. The grit size indicates the grade on the abrasive side of the paper. The higher the grit size, the finer the abrasive is. The basic descriptions of abrasive types range from coarse to medium to fine. Here’s basic table of the different kinds of grit sizes.
|12, 16, 20||Super coarse|
|800,1200 and finer||Extra fine|