Air Die Grinder

It works real good so far and I use different sized wheels. If that don't work I use a bench grinder/wheel. I have redone a LOT of parts for both of my cars this way. I also have a prepainting process as well. I strip off what I need,grab a pair of pliers and spray it off with autozone brake cleaner then hit it with a small propane torch or heat gun to make the moisture evaporate before I prime it then paint it. I can literally see the moisture evaporate and move like water rolling on to the beach.