hplacebf, this is interesting. I used an orbital sander and I just bought (today) the same kind of discs. I have not used this brand before.So far it is working OK but a SLOW process. AD trucks are really "curvy" and I have not done the fenders yet. If I have to use an angle grinder I'll use it on the bed where the surface is more flat. That might even be too aggressive in my situation. Thanks for the tips. Steve
