(C ) Coarse - Green
(M) Medium - Dark Brown
(F) Fine – Reddish Brown
(XF) Extra –Fine- Dark Bluenito

In silicon carbide grit, Matz wheels are made of the following:

Coarse (C)   -  Medium -    Fine -  Extra Fine
   C                   M                  F           EF

All wheels are made in three types of bond hardness:
Soft   --  Regular --  Hard

In Aluminum oxide grit, Matz wheels are stocked:
Mesh --- 46   -80  -- 120   220

If other grit is required, we will be glad to meet your specifications.