Originally Posted by Ssrjim
I like these:
http://t.harborfreight.com/4-12-in-polycarbide-abrasive-wheel-60571.html

I call them the paint eraser. The have them at the home big box stores as well.
These work miraculously for removing multiple layers of paint and there is nothing which I have found that removes bondo better.
Norton makes a blue version which works better and lasts longer (it is more expensive to buy, but in the end, the cost equals out)
Also, neither of these hurt the metal.
Carl

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission