10.3530 3M Bristle Disc 3" 1 Micron
Great for cleaning and maintaining hard to reach areas on platinum, gold, silver, copper, pewter and brass pieces. Embedded mineral abrasive is harder than most metals. Removes oxides without messy compounds. These discs do not generate the same amount of heat as rubber wheels do. Those of 2" & 3" are to be used with adaptor mount, No. 10.3541.