--- product_id: 542553468 title: "Ultra Quiet Rock Tumbler Kit for Adults – 3LB Professional Rock Polisher with Noise-Reduction Cover & Brushless Motor, 3 Speeds, 9-Day Timer & Complete Accessories for Hobbyists & Collectors" brand: "komestone" price: "€ 414.29" currency: EUR in_stock: true category: "Kome Stone" url: https://www.desertcart.hr/products/542553468-ultra-quiet-rock-tumbler-kit-for-adults-3lb-professional-rock store_origin: HR region: Croatia --- # 9-day programmable timer 6X quieter operation Brushless motor for durability Ultra Quiet Rock Tumbler Kit for Adults – 3LB Professional Rock Polisher with Noise-Reduction Cover & Brushless Motor, 3 Speeds, 9-Day Timer & Complete Accessories for Hobbyists & Collectors **Brand:** komestone **Price:** € 414.29 **Availability:** ✅ In Stock ## Summary > 🔮 Elevate your hobby with the quiet power of professional polishing! ## Quick Answers - **What is this?** Ultra Quiet Rock Tumbler Kit for Adults – 3LB Professional Rock Polisher with Noise-Reduction Cover & Brushless Motor, 3 Speeds, 9-Day Timer & Complete Accessories for Hobbyists & Collectors by komestone - **How much does it cost?** € 414.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/542553468-ultra-quiet-rock-tumbler-kit-for-adults-3lb-professional-rock) ## Best For - komestone enthusiasts ## Why This Product - Trusted komestone brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Inclusive Pro Kit:** Start tumbling immediately with premium stones, grits, accessories, and a step-by-step guide designed for serious collectors. - • **Maximized 3LB Capacity:** Polish 50% more stones per cycle—more variety, less waiting, and bigger hobby wins. - • **Whisper-Quiet Tumbling:** Run your rock polishing sessions anytime without disturbing your space or neighbors. - • **Brushless Motor Powerhouse:** Experience smoother, cooler, and longer-lasting performance that keeps your stones perfectly polished batch after batch. - • **Smart Speed & Timer Control:** Customize 3 speeds and a 9-day timer with settings recall for flawless, hands-off polishing every time. ## Overview The KomeStone Ultra Quiet Rock Tumbler Kit features a 3LB rubber barrel with noise-reduction cover and a brushless motor that runs up to 6X quieter than standard models. It offers 3 speed settings, a 9-day programmable timer with settings recall, and includes a complete set of polishing grits, rough stones, and accessories. Designed for adult hobbyists and collectors, it delivers professional-quality results with minimal noise and maximum convenience. ## Description desertcart.com: Ultra Quiet Rock Tumbler Kit for Adults – 3LB Professional Rock Polisher with Noise-Reduction Cover & Brushless Motor, 3 Speeds, 9-Day Timer & Complete Accessories for Hobbyists & Collectors : Toys & Games ## Features - Professional Results Without The Noise — The K2 Elite runs up to 6X quieter than standard rock tumblers. A dedicated noise-reduction cover seals around the barrel to contain vibration, while soft rubber barrel walls cut tumbling noise by up to 75% vs. plastic barrels. Run it in an apartment, a shared workspace, or overnight without disturbing anyone — ideal for adults, hobbyists, and collectors who demand reliable performance. - Premium Brushless Motor for Long-Term Reliability — The K2 Elite runs on a brushless motor designed for smoother barrel rotation, lower heat output, and significantly reduced wear compared to brushed alternatives. No brushes means fewer moving parts to replace, a longer service life, and more consistent torque across every polishing stage — so stones polish evenly from the first batch to the hundredth. For hobbyists and collectors who treat their equipment as a long-term investment, the brushless drive system is the key difference between a seasonal toy and a permanent workshop tool. - 3LB Capacity for Serious Hobby Projects — The K2 Elite's 3LB rubber barrel gives you 50% more capacity than 2LB entry-level models — more stones per cycle means fewer batches and more time enjoying finished results. Handles agates, jasper, quartz, river rocks, crystals, and most popular tumbling stones. The soft rubber walls protect stones from excessive impact while keeping noise low. Ideal for rock collectors and lapidary hobby projects where batch size and stone variety matter. - Smart Controls with Settings Recall — Dial in the right tumbling speed for each polishing stage with 3 selectable speed settings. The 9-day programmable timer runs each stage automatically and shuts off when complete. Settings Recall stores your timer and speed configuration — so if power is interrupted, the K2 Elite picks up exactly where it left off without needing to be reprogrammed. Consistent settings across every stage mean predictable, repeatable results whether you're in your first batch or your fiftieth. - Complete Professional Hobby Kit — Everything needed to start tumbling is included in the box — the K2 Elite tumbler, 3LB soft rubber barrel, 1LB of rough gemstones (9 varieties), complete 4-stage polishing grit set,ceramic pellets, sifter, 2 drive belts (1 spare), jewelry finding, and a full-color illustrated guidebook with step-by-step instructions. Designed for hobbyists who want professional-quality results from their very first batch. - 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 desertcart's 30-day return window, simply contact our 𝐔𝐒-𝐛𝐚𝐬𝐞𝐝 𝐜𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 team for 𝐡𝐚𝐬𝐬𝐥𝐞-𝐟𝐫𝐞𝐞 𝐫𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭 𝐨𝐫 𝐫𝐞𝐟𝐮𝐧𝐝 𝐚𝐬𝐬𝐢𝐬𝐭𝐚𝐧𝐜𝐞. We offer 𝟐𝟒/𝟕 𝐜𝐥𝐚𝐢𝐦 𝐬𝐮𝐩𝐩𝐨𝐫𝐭 to ensure your complete satisfaction. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C58TH7W6 | | Best Sellers Rank | #11,589 in Toys & Games ( See Top 100 in Toys & Games ) #6 in Kids' Rock Tumblers | | Brand Name | KomeStone | | Color | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (870) | | Included Components | 1 extra belt for spare use and 4 polishing grits, 1 lb rough stones, illustrated tutorial learning guide, 1 x sifter, 1 x screwdriver, 1 set jewelry Fastenings, 1 x tumbler machine, 1 x 3 lb barrel, 1.5m AC adapter, Warranty Card ( Lifetime customert service email: support@komestone.com ) | | Item Type Name | Rock Tumbler | | Item Weight | 3.9 Kilograms | | Manufacturer | KomeStone | | Manufacturer Part Number | CA-KS0515RT46 | | Material Type | Cutting-Edge brushless motor, Please email to our after-sales service center ( support@komestone.com ) to receive the extra bag of rocks for spare use after placing the order. Our customer service will solve any issues timely., Stainless Steel, Tyre grade rubber, 𝐂𝐏𝐒𝐈𝐀 & 𝐂𝐏𝐂 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 | | Model Number | CA-KS0515RT46 | | Power Source | Corded Electric | | Unit Count | 1.0 Count | ## Product Details - **Brand:** KomeStone - **Color:** Black - **Power Source:** Corded Electric ## Images ![Ultra Quiet Rock Tumbler Kit for Adults – 3LB Professional Rock Polisher with Noise-Reduction Cover & Brushless Motor, 3 Speeds, 9-Day Timer & Complete Accessories for Hobbyists & Collectors - Image 1](https://m.media-amazon.com/images/I/81ZU5JdBXnL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: How can I order more polishing grits?** A: We have a polishing grits kit of 4 lbs, just visit the link: https://www.amazon.com/dp/B0B74KYP44. For any questions and concerns, please contact our customer service via: support@komestone.com, we'll get back to you very soon. For any issues about this rock tumbler, we promise to solve timely. We are standing behind our brand and products. Thanks for purchasing from us. **Q: How much polishing grits should I use?** A: For better results, we would advise you to add 2 tbsp or more of polishing grits per pound of rocks, and 0.5 lb-1 lb of the ceramic pellets for protect rocks from scratches. **Q: What is the rotation speeds per minute?** A: Normally speaking, the speeds is quite steady. Speed 1：770 Speed 2：920 Speed 3：1080 **Q: Can I add more than 3 lbs rocks into this barrel for tumbling?** A: The capacity of the barrel for the K2 Elite rock tumbler is 3 lbs, so you can add as much as 3 lbs of rocks, and then add water, and polishing grits and ceramic pellets. For any questions and concerns, please contact our customer service via: support@komestone.com, we'll get back to you very soon. For any issues about this rock tumbler, we promise to solve timely. We are standing behind our brand and products. Thanks for purchasing from us. Anne. ## Frequently Bought Together - KomeStone K2 Elite Professional Rock Tumbler Kit, Ultra Quiet & Cutting Edge Brushless Motor Rock Polisher for Adults & Rock Collector, Noise-Reduction, Extra Large 3 Lbs Barrel, STEM Gift for All Age - Polly Plastics Rock Tumbler Grit and Polish Refill & Ceramic Tumbling Filler Media - Silicone Carbide Polisher Grit - Rock Polish Supplies & Accessories - KomeStone Nylon Belt 2-Pack for K2 Elite Rock Tumbler – Durable Replacement Belt K2 Elite Model Only / 2 Pcs --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/542553468-ultra-quiet-rock-tumbler-kit-for-adults-3lb-professional-rock](https://www.desertcart.hr/products/542553468-ultra-quiet-rock-tumbler-kit-for-adults-3lb-professional-rock) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-21*