Quote Originally Posted by joepa150 View Post
Sorry to hijack:

Would a DMT 6" Diasharp coarse/ extra coarse stone work for flattening Norton 4/8k stone?

I just don't want to buy the larger DMT.
Basically no. The Norton is bigger than the 6" DMT so would be maddening to measure flatness & then have to lap specific areas of stone. So easy to get it wrong unless you've done that sort of thing before.