KomeStone specializes in advanced rock tumbler kits and gemstone polishers designed for hobbyists, beginners, and professionals seeking precise rock polishing.
KomeStone is a dedicated manufacturer of high-quality rock tumbler kits and gemstone polishing equipment. Focused on enriching hands-on STEM learning and making lapidary hobbies accessible, KomeStone provides comprehensive, easy-to-use kits tailored for both beginners and experienced rockhounds.
Their models, such as the K1 Advanced, K2 Elite, and K3 Hobby rock tumblers, feature cutting-edge designs including ultra-quiet brushless motors, digital timers, noise-reducing mechanics, and multi-speed settings. Beyond the primary hardware, KomeStone supplies all the necessary grits, ceramic tumbling media, rough stones, and jewelry fastenings to ensure users have a complete, out-of-the-box rock tumbling and polishing experience.
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Common questions about manuals, registration, and support for this brand.
For best results, fill your tumbler barrel about 1/2 to 2/3 full. If you don't have enough rough stones, add the provided ceramic tumbling media to reach the recommended fill level.
No. Never pour used grit or grinding powder down household drains, as it can severely damage your plumbing. It is strongly recommended to wash your stones and barrel outside.
If you overfill the tumbler, a built-in sensor will automatically protect the motor inside by turning the tumbler off. Simply press the On/Off button, remove some rocks, and turn it on again.
You can reach KomeStone support by emailing support@komestone.com or by texting 909-717-8024 for technical support and missing part inquiries.