Hi,

I thought I posted this before but can't find it so I'll try again.

Many people say they use their coticule as a polishing stone and it is a great finisher.

I don't understand how it can be when it is only 6-8k grit.

Everyone agrees the Tam O'Shanter and the Norton 8k need a final polishing stone afterwards but not the Coticule.

How is this so when they are all about the same coarseness, how can a 6-8k stone do the same job as a 12k stone or higher?