Terms of Service

Last updated October 2026

Welcome to Best Rock Tumbler. By accessing or using this website, you agree to these terms. If you do not agree, please do not use the site.

About This Site

Best Rock Tumbler is a small publication for hobby rock tumblers. We cover rotary and vibratory tumblers, grit and polish kits, rough stone for filling a barrel, and the hand tools that help you find good rock in the first place. Every guide is written from long hours at a garage workbench, including the batches that went wrong, so you can get shiny stones with fewer ruined loads.

Affiliate Disclosure

Best Rock Tumbler is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. When you click an Amazon link in our content and purchase a qualifying product, we may earn a small commission at no additional cost to you.

Tumbling Safety

Rock tumbling is a calm hobby, but a few real hazards are worth knowing. Tumblers run for days at a time, so set yours on a stable, level surface away from curtains, paper and anything flammable, use a grounded outlet, and never run a cord through a doorway or under a rug. Check the motor and belt for heat and wear between stages.

Never pour grit slurry down a household sink or toilet. It settles like concrete and can clog plumbing. Let it dry in a bucket or a lined box and throw it out with the trash. Dry grit and rock dust are fine silica particles, so avoid breathing them in: work with wet material when you can and wear a dust mask when you scrape out dried slurry.

Some stones should not go in a tumbler at all, including soft or toxic minerals and anything you cannot identify. Keep grit, polish and small stones away from children and pets, since small tumbled stones are a choking hazard. When using a rock hammer or chisel in the field, wear safety glasses and gloves, as struck rock can throw sharp chips, and follow local rules about where collecting is allowed.

This site shares general hobby information, not professional advice. Always read and follow the manufacturer's instructions for your tumbler and supplies.

Accuracy

We update product information periodically, but prices, formulations, packaging, and availability change without notice. Always confirm current details on the product's Amazon page before purchasing.

External Links

This site links to Amazon and other third-party websites. We are not responsible for the content, accuracy, or practices of any external site.

Intellectual Property

All editorial content on this site, including photos, illustrations, charts, and text, is the property of Best Rock Tumbler or its licensors. You may not republish or redistribute it without written permission.

Limitation of Liability

Best Rock Tumbler makes no warranties about the accuracy or completeness of any content. We are not liable for any loss or damage that may result from using information on this site.

Changes to These Terms

We may update these terms from time to time. Continued use of the site after changes means you accept the updated terms.

Contact

Questions about these terms can be sent through the contact information on the privacy page.