Centering a Hollow Grind
Furnished content.
(from Popularwoodworking.com)
A felt-tip pen is the best tool I've found for adjusting a grinder's tool rest. When you need to find the center of a bevel in order to duplicate an angle, color the whole bevel with a Magic Marker or …Source
Read more here
edit: Woodworking/auto___centering_a_hollow_grind.wikieditish...