[chris dawe]

Have any of you ever used one of these to clean part's ? I have access to one and was wondering if it could be a viable option to cleaning out the engraving on old gun's ,it stand's to reason that if there is old gunk surface rust on the peice then there may also be some of the same in the engraving and making it shallow (for a lack of a better word).my understanding is this will clean everything down to the original metal.....any thought's ?