PUT A DAZZLING POLISH ON YOUR ROCKS with Polly Plastics rock tumbler grit and polish refill. Our one-of-a-kind rock polisher kit contains four different kinds of grits to provide initial shaping ...

PUT A DAZZLING POLISH ON YOUR ROCKS with Polly Plastics rock tumbler grit and polish refill. Our one-of-a-kind rock polisher kit contains four different kinds of grits to provide initial shaping ...

Initial tests were positive, with the tumbler successfully polishing some cast brass parts using crushed walnut shells. [VegOilGuy] is still looking for a more abrasive media to use for initial ...