Quote:
Originally Posted by Jack Shaft
Sandpaper,wire brushes emery cloth or scotch brite all remove metal.The best method for cleaning without any chance of distortion is a roloc bristle disc use it with a die grinder..
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I just cleaned my block surface tonight and I mostly used a Roloc green disc and then a white disc, both on a 1/4" shank in a cordless drill. They worked well, but there were a couple spots I wasn't making progress on and I discovered that a
4" nylon-abrasive wheel really did the trick.