Dual-Barrel Rock Tumbler Kit – 8LB Extra Large Capacity (4LB × 2), Brushless Motor & Heavy Metal Base, 3 Speeds & 9-Day Timer, Rock Polisher for Adults & Collectors, Full Accessories Included
US$80.00
Price when purchased online
Free shipping
Free 30-day returns
Sold and shipped by storagejr.com
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here.
US$80.00
Price when purchased online
Free shipping
Free 30-day returns
Sold and shipped by storagejr.com
Free 30-day returns Details
Product details
| Management number | 222128726 | Release Date | 2026/05/04 | List Price | US$80.00 | Model Number | 222128726 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
- Long-term tumbling under heavy loads can cause natural wear on belts over time. Reach out to our support team to request 10 extra belts — absolutely free.
- More Output, Less Waiting – DOUBLE 4LB Barrels For Adults & Serious Collectors : Unlike single-barrel tumblers that force you to wait between stages, two 4LB barrels let you run different stones or polishing stages simultaneously. Handle larger batches, process multiple rock types at once, and complete projects up toup to 100% more output per session — without extending individual run cycles. The rock tumbler for adults who want real results, not just a starter kit.
- Parallel Tumbling For A Smarter, More Efficient Workflow : Run coarse grinding in one barrel while advancing to fine polishing in the other — or process stones of different hardness levels at the same time. This dual-barrel system doesn't just add capacity; it eliminates the idle time between stages that single-barrel tumblers require, making your entire workflow fundamentally more efficient.
- Heavy-Duty Brushless Motor & Reinforced Metal Base – Built To Outlast : Unlike brushed motors prone to heat buildup and premature wear, the high-efficiency brushless motor in this heavy duty rock tumbler delivers stable, low-heat output for up to 40,000 hours — over a decade of reliable use. The reinforced metal base reduces vibration and supports consistent operation through extended tumbling cycles. KomeStone was among the first to bring brushless motor technology to rock tumblers, with reliability validated by over 1 Million users in the U.S.
- Smart Controls For Precise, Multi-Stage Polishing : Program each stage with precision using 3 adjustable speeds and a 9-day programmable timer matched to your tumbling cycle. Auto shut-off and memory function allow safe, unattended operation — so your stones keep polishing even when you step away. Smart control technology refined through extensive real-world use ensures consistent, repeatable results every time.
- Complete Advanced Kit – Everything You Need To Start Tumbling : Includes 2×4LB rubber barrels, 2lb premium rough gemstones, complete 4-stage polishing grit set(8 bags), 2 spare belts, screwdriver, jewelry findings, mesh strainer, and a full-color instruction manual Book — everything required for a full multi-stage project right out of the box. Designed for serious hobbyists and collectors who want a more capable, efficient rock tumbling experience, it also makes a premium gift choice for enthusiasts and hobby starters alike.
- 𝟗𝟎-𝐃𝐚𝐲 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 𝐆𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞 & 𝟏-𝐘𝐞𝐚𝐫 𝐖𝐚𝐫𝐫𝐚𝐧𝐭𝐲 : Enjoy peace of mind with our extended 90-day refund guarantee and 1-year warranty. If you miss Amazon's 30-day return window, simply contact our 𝐔𝐒-𝐛𝐚𝐬𝐞𝐝 𝐜𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 team for 𝐡𝐚𝐬𝐬𝐥𝐞-𝐟𝐫𝐞𝐞 𝐫𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭 𝐨𝐫 𝐫𝐞𝐟𝐮𝐧𝐝 𝐚𝐬𝐬𝐢𝐬𝐭𝐚𝐧𝐜𝐞.
- KomeStone – Designed for Rock Tumbling Enthusiasts in the U.S : From the K1 series, which achieved Amazon Best Seller recognition, to brushless motor upgrades in select models, KomeStone continues to improve performance and user experience in rock tumbling. Our lineup covers all levels of hobby use: K Series: K1, K1 Pro, K2 Elite (noise-reduction design), K4 (dual-barrel with upgraded motor), K5 (beginner-friendly) G Series: G1 (4LB), G2 (8LB), G3 (22LB heavy-duty metal base) We also offer a complete grit system, including fine polishing grits for multi-stage tumbling. KomeStone is committed to providing reliable tools and long-term support for rock tumbling hobbyists.
| Brand Name | KomeStone |
|---|---|
| Unit Count | 1.0 Count |
| Manufacturer | KomeStone |
| Model Number | KomeStone G2 Rock Tumbler Kit |
| Material Type | Cutting-Edge Brushless Motor, Heavy-Duty Metal Base, Stainless Steel, Tyre Grade Rubber |
| Included Components | 1-Year Warranty Card & Illustrated User Book, 2 Spare Belts, Jewelry Fastenings, Mesh Strainer, Screwdriver, Power Adapter, 9 Types & 2Lb Assorted Rough Rocks, 8 Bags of Polishing Grits, Metal Rock Tumbler Base & 4lb Capacity Rubber Barrel *2 |
| Manufacturer Part Number | RTG2-260310-08 |
| Specific Uses For Product | Rock, Gemstone |
Bestseller ranking
Motorcycle Racing
Customers who viewed this product also viewed
Rock Tumblers
Correction of product information
If you notice any omissions or errors in the product information on this page, please use the correction request form below.
Correction Request Form