Abrasives Grading System

The American grading system called Cami is not used as widely. Cami is identified by just the number (24 coarse – 1200 super fine). The difference is that the Cami grade is coarser than the P grade in coarse grits and finer than the P grade in the finer grits. The comparison chart is used to help transition and use between the 2 systems.