| Micron Size |
Equivalent FEPA Designation |
General Application |
| 0-1/2 |
M 0 |
Polishing |
| 0-1 0-2 |
M 1.0 |
|
| 2-4 2-5 |
M 2.5 |
Pre-Polishing |
| 3-6 4-6 |
M 4.0 |
|
| 4-8 4-7 5-10 |
M 6.3 |
Surface Preparation |