Shop Tip #348
© Frank Ford 2006; Photo by FF
Before you even think
about mounting a new (or used) grinding wheel, give it the two-screwdriver
treatment. Hold it with one screwdriver and bonk it with the handle
of another. You should hear a nice metallic "ring." If
not, get rid of the wheel - it's cracked and likely to explode when it
gets up to speed!