I have two Craftsman block grinders. One is a 1/3 HP and takes 6" x 3/4" wide x 1/2" arbor wheels and the other is a 1/2 HP and takes 7" x 1" wide by 1/2" arbor wheels.
I currently have a grinding wheel on one side and a coarse wire wheel on the other of each grinder. What would be the most...