Use our magnetic tumblers to finish precious, non-ferrous metals with a high degree of intricacy. Magnets constantly change polarity, creating a centrifugal action in the stainless steel media allowing you access to recesses, channels, undercuts, and other confined areas. Soft, non-ferrous metals can be burnished in as little as half an hour. Large, smooth/flat surfaces, will appear frosted for an interesting, satin-finish look.