I was thinking of getting a electric die grinder for my polishing. I'm just doing stuff on my boys race quad. I already burned up a old 3/8 Craftsman drill now I'm using my 3/8 Milwaukee drill. But I been reading all this SFPM stuff. The RPM on the grinder I'm looking at is 25000 is that to high. I have a little kit but it only had soft wheels. I was going to get the grinder. And then the arbor and four inch wheel kit from Caswell.
http://www.caswellplating.com/buffs/arbor.htm
I want to do this bumper again and get it a little nicer before I clear powder coat it.