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 ...

Load balancing refers to the even distribution of contents in your rock tumbler. This includes rocks, filler material, and ...

Northern Michigan Voices is a series by 9&10 News reporter Olivia Fellows in which she interviews a person in the community about a story or experience from their life. Everyone has an interesting ...

If you’re reading Hackaday, there’s a good chance you had a rock tumbler in your younger days. Hell, we’d put odds on a few of you having one rumbling away in the background as you read this.