But that is not torque. Bench grinders are not designed to have torque- the stone wheel could become a shattered projectile. I have not encountered a bench grinder you couldn't keep from turning on with a slight amount of force from your hand. Grain could do the same thing.
As mentioned by others, inexpensive corded drills are great for this. One thing I'll add is to use a router speed control (or "variable speed controller") to get the exact RPM needed.
« Last Edit: February 19, 2013, 11:16:43 AM by surfin_mikeg »
Devil's Slide Brew Club - Montara, Moss Beach, El Granada, Half Moon Bay, Pescadero CA