Rock Tumbler Parts

Replacement rock tumbler parts from Moon Forge Stoneworks, the artisan lapidary behind Beatrix Moon. If you've lost a lid knob or worn out a drive belt, you shouldn't have to replace the whole machine.

This collection includes heavy duty star knob lid nuts and replacement drive belts for popular rotary tumblers, including the Vevor 17LB (Model SP-17-001) and the Extreme Tumblers Rebel 17. Most parts are available as a single piece or a multi-pack, so you can keep spares on hand for your next batch.

We keep these parts in stock for hobbyists who need to get their tumblers running again. Check the listing for your tumbler's model before ordering, and browse our lapidary rough and tumbled stone if you're ready to fill the barrel.