About Rock Tumbler Guide
Our approach to explaining rock tumbling and evaluating equipment.
Practical help without made-up testing
Rock Tumbler Guide is an independent educational resource focused on rock tumbling, polishing equipment, supplies and common mistakes. We explain how different tools work and what product specifications mean for ordinary hobbyists.
We use manufacturer documentation, established hobby guidance and clearly identified editorial reasoning. Unless an article explicitly documents real hands-on testing, do not interpret its recommendations as products tested personally by our editors.
How the site earns money
Some links are Amazon affiliate links. They may earn a commission when you buy after clicking. We aim to recommend a product only when it suits the question being answered. We do not display invented prices, fabricated ratings or claims of testing that did not happen.
Corrections and updates
Equipment specifications can change. Always check current model details on the manufacturer and retailer pages before purchasing. Editorial information is reviewed when corrections or new evidence become available.