Ok I have the electric one that spins at 10,000 and 20,000 rpm. I have used my variable speed electric drill at very low speed with better luck.
One day while working I had to do some demonstrations with the Dremel, so I brought a cam cover in and marked down for "store use" some wire brushes and abrasive pads and did some work on my parts, but I couldnt continue marking things down as fast as I was going through them.
We have a Dremel rep that comes into Home Depot that said that when polishing you want the speed as low as possible, just enough to keep the bit turning.
