I once worked in a shop that had Scotchbrite polishing wheels on a bench grinder that worked very well for polishing and de-burring. I have not seen them since working there. Does anyone know if these are available at a normal retail store? I looked at Amazon and saw some for over $100 and that is not in the budget. The buying one online sight unseen is not what I want to do, either. The plan is to use it for removing rust and bluing on an old rifle.