These unique 3 dimensional flexible bristle discs from 3M are 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. Great for
removing oxides- no need for messy compounds.
These disks do not generate the same amount of heat as rubber wheels
do.
They can be used individually, or they can be stacked.