The motor will be too small, even if attached to a gear drive to turn your mill. If you have gear reduction the torque does increase, but it will take some b*lls to turn your mill with grain in it. Don't know how many amps that little motor is, but I'm guess it's probably .01 or less, which at 120VAC is less than 1.2 watts or .0016 HP. Even if you increase it 30 times through a gear drive, it ain't much. Something like an old sewing machine motor would probably work. I have a little motor I use to turn a valve on a piece of equipment that is a little over 2 watts and you can stop it with a pair of pliers.