Thread: Why lapping film rules

Originally Posted by riooso

Here is a general little formula that I picked up somewhere on the forum a while back. It is a pretty good approximation.

Estimated Microns = 14755/Grit

for a 30k stone for instance

Estimated Microns = 14755/30,000
= 0.491 microns

Take Care,
Richard

Hi,
Well with this calculation it seems 2 micron would be good for honing. Is there a 2 micron diamond lapping film? Thanks.