Deuling and the woodchuck beat me to it, but yeah, clean that sh!t before you burn on it. I personally like the wire cup brush wheel on the grinder (though they shrapnel wires out if you whang on 'em hard). Get you a real coarse one, none of that pansy fine stuff:
http://www.harborfreight.com/3-inch-twisted-wire-cup-brush-47927.html
The flap disc is also good, but if you go batsh!t crazy with them they can remove more material than you wanted.
-- A
http://www.harborfreight.com/3-inch-twisted-wire-cup-brush-47927.html
The flap disc is also good, but if you go batsh!t crazy with them they can remove more material than you wanted.
-- A


