Used in my bench top drill press. So far this is great! I had a very tarnished hunting knife with a leather stack handle. I had to be pretty aggressive in trying to remove as much rust as possible. The final step was the buffing wheels with the compounds. Really brought it up well, even the leather handle. I would gladly pay extra for an extra spindle for each of the buffing wheels rather than one for the three, but doesn’t impact my rating of the product.