Paint, varnish, lute

Coarseness of the abrasives is measured by the size of the abrasive grain or grit. Abrasive grains can be:

      - very coarse (grits 12-24)

      - coarse (grits 30-60)

      - fine (grits 70-180)

      - very fine (grits 220-2500).

For example, grain of grit 60 has the same size as a grain of sugar, and grain of grit 2000 has the size of a grain of flower.