I have been using a heavy duty knotted wire brush about 5" in diameter mounted on my 7" Craftsman sander/polisher. It works great, but dust is EVERYWHERE. My shop is a one car garage in the basement, which is where my indoor fan unit for the heat pump is. I have been having to change filters more often than usual. Wish I could take it outside.

Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."