Diamond Grit Coating comes in a range of 20 to 400+ grit. 20 is the thickest size, with a build-up of 0.034" (+/-.008). 400 is much finer with a build-up of 0.0017" (+/-.001). We apply diamond grit coating of any mesh size to:

Chamfering Tools
Hole Saws
End Mills
Counter Sinks