Kevinchau270

The other axis is pretty hard to capture as the length is shorter and makes it hard to show, but I believe they are concaved as the first picture shows only the outer edge been able to contact with the knife edge..

The 1500/2200 is the highest grit stone I’ve got for now.

The other stone surface of these grits by comparing with the side o…[Read more]

Hi MarcH,

I’m very appreciate with your informative reply.

All 4 surfaces on 1500/2200 stones are like the picture and behaving pretty much the same. I have taken some more pictures of them. I tried your way to lay a metal ruler onto the most concaved stone and put torch behind it. It seems showed there is low spot on the stone and I have p…[Read more]