--- product_id: 413531948 title: "KomeStone Rock Tumbler Kit, K1 Professional Large 2.5LB Capacity Edition - Memory Function, Digital Timer & Variable Speeds: Create Stunning Gems Full Accessories Included" brand: "komestone" price: "1102.52 DT" currency: TND in_stock: true reviews_count: 6 url: https://www.desertcart.tn/products/413531948-komestone-rock-tumbler-kit-k1-professional-large-2-5lb-capacity store_origin: TN region: Tunisia --- # 9-day digital timer 3 variable speed settings 2.5LB thick rubber barrel KomeStone Rock Tumbler Kit, K1 Professional Large 2.5LB Capacity Edition - Memory Function, Digital Timer & Variable Speeds: Create Stunning Gems Full Accessories Included **Brand:** komestone **Price:** 1102.52 DT **Availability:** ✅ In Stock ## Summary > 💎 Turn rough stones into dazzling gems—because your creativity deserves the spotlight! ## Quick Answers - **What is this?** KomeStone Rock Tumbler Kit, K1 Professional Large 2.5LB Capacity Edition - Memory Function, Digital Timer & Variable Speeds: Create Stunning Gems Full Accessories Included by komestone - **How much does it cost?** 1102.52 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/413531948-komestone-rock-tumbler-kit-k1-professional-large-2-5lb-capacity) ## 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 - • **Generous Capacity:** Large 2.5LB barrel lets you tumble more stones per batch—perfect for serious hobbyists and creative pros. - • **Memory Function Magic:** Pause and resume your polishing cycle without losing progress—ideal for busy schedules and multi-step projects. - • **Complete All-In-One Kit:** Includes polishing grits, ceramic pellets, jewelry fastenings, and tools—everything you need to start crafting stunning gems immediately. - • **Precision Polishing Control:** Customize your gem’s shine with 3 speed settings and a 9-day digital timer for flawless results every time. - • **Family-Friendly & Educational:** Easy enough for kids 6+ to use, turning rock tumbling into a fun, hands-on lesson in patience, geology, and creativity. ## Overview The KomeStone K1 Professional Rock Tumbler Kit combines a robust 2.5LB thick rubber barrel with advanced features like a 9-day digital timer, 3 variable speeds, and a memory function. Designed for hobbyists and families, it includes all necessary accessories and polishing grits to transform raw rocks into smooth, polished gems. Its user-friendly design supports educational and creative pursuits, backed by reliable customer support and durable PU belts for long-term use. ## Description Are you tired of compromising between function and capacity when it comes to rock tumbling? Look no further. The KomeStone K1 Classic Edition has been widely recognized for its balance of performance, durability, and user-friendly design — making it a trusted choice for enthusiasts, hobbyists, and families across the U.S. Our tumbler’s quality and reliability have also been highlighted by independent product evaluators, who acknowledge its strong feature set and long-term value. This recognition reinforces what our customers already know: K1 delivers results that truly stand out in real-world use. We understand that rock tumbling is more than a hobby — it’s an investment. That’s why we support every tumbler with lifelong assistance, including replacement parts and technical guidance. Even after your warran*ty expires, we’re still here to help you keep your machine running smoothly for years ahead. Your trust means everything to us. We aren’t just here to sell — we’re here to support. Always. Each stone hides a story waiting to be revealed. The moment when rough rocks turn smooth and begin to shine is pure magic — a reward for your patience, curiosity, and creativity. Watching your collection come to life is not just satisfying — it’s inspiring. Rock tumbling isn’t just about polishing stones — it’s about the process of discovery. Many families tell us it has become a shared hobby that helps children build focus, patience, and an appreciation for hands-on learning. Every polished gem becomes a reminder that beautiful things take time and care. To keep your adventure going, explore our refill grit sets — available in 4 lb, 6 lb (with ceramic media), and 10 lb (with ceramic & plastic pellets) — perfect for larger projects or long-term tumbling. And for that final, glassy brilliance, try our 8000 / 12000 grit aluminum oxide polish in your next batch. Notice: If there is any part missing, please kind take a moment to reach out for a replacement or the compensation. Thanks for your patience! Welcome to a world of exquisite craftsmanship! Share your captivating stone creations with us, and we'll proudly showcase them across our desertcart details page and vibrant social media platforms. Your talent deserves a spotlight. Should any concerns arise, rest assured, we're dedicated to swift solutions. Instead of frustration, kindly connect with us for assistance. Our support is unwavering. You may not know: Rock tumblers transform raw rocks into stunning gems for jewelry, crafting, and collections. For an exceptional shine, explore the art of polishing with high-quality grits, soap water, mineral oil, and meticulous steps. Practice perfects the process. Dig Deeper: Absolutely. Inside your package, discover a full-color Instruction book, guiding you through every step. It's so clear, even a 4-year-old can navigate it. Currently, all of our rock tumblers come with PU belts, which is a new and upgraded, more durable option. Generally, these belts do not break, although special circumstances may occur. However, if the belt breaks, please replace it with one of the PU belt from the pack. After placing your order or receiving the product,please email to our after-sales service center to receive the additional 5 spare belts. You can find the specific after-sales email on the main image or in the manual. Rest assured, for any products issues, please reach out to us, and we will handle them properly. We are in the process of replacing all belts with PU belts, meaning that future belts are unlikely to break. Encountering a hiccup with your rock tumbler? First, consult our FAQs in the instruction book or on this page. For product concerns, connect with us directly. Our dedication to unparalleled service ensures swift resolutions. Your satisfaction is paramount. Trust that we're dedicated to elevating your experience and swiftly addressing every matter. ## Features - ⚡ ⚡ ⚡ _xD835__xDC0E__xD835__xDC2B__xD835__xDC22__xD835__xDC20__xD835__xDC22__xD835__xDC1A__xD835__xDC27__xD835__xDC1A__xD835__xDC25_ _xD835__xDC0C__xD835__xDC1A__xD835__xDC27__xD835__xDC2E__xD835__xDC1F__xD835__xDC1A__xD835__xDC1C__xD835__xDC2D__xD835__xDC2E__xD835__xDC2B__xD835__xDC1E_ & _xD835__xDC01__xD835__xDC2B__xD835__xDC1A__xD835__xDC27__xD835__xDC1D_ _xD835__xDC0E__xD835__xDC2E__xD835__xDC2D__xD835__xDC25__xD835__xDC1E__xD835__xDC2D_: KomeStone brand owns the design of this rock tumbler - Belts are consumable, Please _xD835__xDC2B__xD835__xDC1E__xD835__xDC1A__xD835__xDC1C__xD835__xDC21_ _xD835__xDC28__xD835__xDC2E__xD835__xDC2D_ _xD835__xDC2D__xD835__xDC28_ _xD835__xDC2E__xD835__xDC2C_ _xD835__xDC1F__xD835__xDC28__xD835__xDC2B_ _xD835__xDFD3_ _xD835__xDC1E__xD835__xDC31__xD835__xDC2D__xD835__xDC2B__xD835__xDC1A__xD835__xDC2C_ _xD835__xDC1F__xD835__xDC28__xD835__xDC2B_ _xD835__xDC2C__xD835__xDC29__xD835__xDC1A__xD835__xDC2B__xD835__xDC1E_ _xD835__xDC2E__xD835__xDC2C__xD835__xDC1E_ - 90-Day Refund guarantee & _xD835__xDFD0_-_xD835__xDC18__xD835__xDC1E__xD835__xDC1A__xD835__xDC2B_ _xD835__xDC16__xD835__xDC1A__xD835__xDC2B__xD835__xDC2B__xD835__xDC1A__xD835__xDC27__xD835__xDC2D__xD835__xDC32_: _xD835__xDC08__xD835__xDC1F_ _xD835__xDC32__xD835__xDC28__xD835__xDC2E_'_xD835__xDC2F__xD835__xDC1E_ _xD835__xDC26__xD835__xDC22__xD835__xDC2C__xD835__xDC2C__xD835__xDC1E__xD835__xDC1D_ _xD835__xDC00__xD835__xDC26__xD835__xDC1A__xD835__xDC33__xD835__xDC28__xD835__xDC27_'_xD835__xDC2C_ _x - DIVE INTO THE FUN ROCK TUMBLING: KomeStone rock tumbler is for turning rough raw rocks into smooth gemstones, you will be very excited to see the rocks changes with each cycle. That will be a good lesson on patience and geology for kids or a good idea for mom's jewelry making. - 2023 NEW UPGRADE & ADVANCED FEATURES: Built with LCD screen, 9-day setting timer display, 3 speed controls, and pause & resume function. These allow you to have different polishing recipes and steps. That means you can try to make the stone polish brighter, that's more fun..2. ## Technical Specifications | Specification | Value | |---------------|-------| | Age Range Description | Even a 6-8 year old kid knows how to use it, suitable for all people that love to collect rocks or making jewellery. | | Asin | B09PYR2RRT | | Best Sellers Rank | #220,764 in Kitchen (See Top 100 in Kitchen) #3,281 in Tumblers & Water Glasses | | Brand Name | KomeStone | | Color | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (2,774) 4.5 out of 5 stars | | Educational Objective | Teaching geology, patience, and creative design | | Included Components | 1 pound of rocks & 4 bages of polishing grits & ceramic pellets, 1 rock tumbler base & 1 rubber barrel, 2 PU belts & user instructions, jewelry fastenings & adaptor & screwdriver & mesh strainer | | Indoor Outdoor Usage | Indoor | | Is Assembly Required | No | | Item Dimensions | 28.5 x 22.9 x 14.5 centimeters | | Manufacturer | KomeStone | | Manufacturer Maximum Age Months | 1200.0 | | Manufacturer Minimum Age Months | 96.00 | | Manufacturer Part Number | CA-KS0107RT17 | | Material Type | metal, metal Tyre grade rubber Please reach out via our customer service email support@komestone.com help any issues or if you have missed Amazon s 30-day return window Top quality of stainless steel | | Model Number | K1 | | Number Of Players | No Limit | | Operation Mode | Manual | | Power Source | AC adapter | | Set Name | KomeStone K1 Professional Large 2.5LB Capacity Edition | | Size | L | | Subject Character | Getting raw rocks smooth enough to use for jewlery, craft, collections. | | Supported Battery Types | No batteries required | | Theme | Lapidary Tool for DIY Jewelry & Crafts, Perfect gift choice for the families or friends, Rock Tumbler Kit for Polishing Stones, Rock Tumbler Starter Kit with Timer & Motor, Rock Tumbler with Grits and Accessories, Stone Polishing Machine for Kids & Adults | | Unit Count | 1.0 Count | ## Images ![KomeStone Rock Tumbler Kit, K1 Professional Large 2.5LB Capacity Edition - Memory Function, Digital Timer & Variable Speeds: Create Stunning Gems Full Accessories Included - Image 1](https://m.media-amazon.com/images/I/91qI8mtCfjL.jpg) ## Questions & Answers **Q: Replacement belts. How do I order?** A: Hi, here is the link for the belts: https://www.amazon.com/dp/B09S67HKV5/ Or just search KomeStone rock tumbler belts at amazon.com, then you'll find the belts. You are also welcome to follow our brand store on amazon.com through this link: https://www.amazon.com/stores/RockTumblerKit/page/98CD222F-C7A7-4372-80AE-0F0370A463C5 you'll find all accessaries related to our rock tumbelrs. If you want to contact our customer service, just email us via: support@komestone.com, we'll get back to you very soon! **Q: Will the starter kit include all 9 kinds of stones or are there just some random rocks?** A: This rock tumbler kit includs 9 kinds of stones as advertised, weights around 1lb. **Q: Can I tumble rocks we find at the park or do they have to be these special rocks?** A: You can tumble any rocks you’d like, I suggest you get a rock identification app, plus a hardness chart. The rocks you tumble need to be the same hardness or the softer rocks will disappear… this is a lot of fun and the outcome is beautiful **Q: Can this tumbler be used to polish metal washers?** A: Based on two factors, yes it can. #1 The washer must be a metal that could be polished in a conventional method, such as a buffing machine. #2 That you are using a powder made for polishing. I will add that I do not recommend polishing metal items in a tumbler, ## Customer Reviews ### ⭐ القطع *by on Reviewed in the United Arab Emirates 24 February 2024* قطعة ناقصة من المنتج ### ⭐⭐⭐⭐ Instrucciones en español *by on Reviewed in Mexico 16 November 2022* Ya quiero usarlo, quiero hacer cristal de mar con trozos de vidrio, pero necesito instrucciones en español. Vienen unos sobres que no sé para qué son, así como un frasco con trocitos blancos.Muchas gracias ### ⭐⭐⭐⭐⭐ Great for tumbling small parts and hardware *by on Reviewed in the United States 27 October 2025* I end up with a lot of old hardware and small bits and pieces that come from garage sales, cannibalized equipment, etc. I also restore old tools, work on old cars and motorcycles, etc. I wanted a small tumbler so that I could drop a handful of fasteners or small parts in, let it run for a while, and come back to clean metal.This was a complete shot in the dark. I usually soak parts in vinegar or phosphoric acid when they're rusty, and that works well enough that I wasn't sure if tumbling would work better or be less hassle. On the one hand, there's no acid to neutralize and not much pre-cleaning that has to be done. On the other, you have to deal with abrasive grit, which can get everywhere (and I mean EVERYWHERE). Since I didn't know if I'd like this approach, I didn't want to risk a lot of money on a tumbler. I bought this kit because it was inexpensive and had decent reviews. If this ended up being an essential part of my workflow, I decided that I could always buy something bigger and/or better in the future.So far, this tumbler has been awesome. The first batch of parts that I threw in was a rusty mess of hardware that I'd picked up at a garage sale. This stuff probably hadn't seen the light of day in decades and had a pretty solid layer of rust on it. I skipped the included media and instead filled the tumbler drum with medium (70 grit) aluminum oxide, which is a pretty aggressive grit used for media blasting.I'm not a fan of membrane buttons or plastic construction on most things because I haven't found it to be particularly durable, and this tumbler has both. It certainly doesn't look heavy duty and I didn't expect much out of it. In reality, I didn't even think it would have the power to turn a drum that was chock-full of steel hardware and abrasive, but I gave it a shot.I was pleasantly surprised that the drum started turning effortlessly even at the highest speed. Most of the hardware had settled to one side so the load was imbalanced and the tumbler started to walk across my workbench, but I propped it in place with a heavy box and let it run.After about an hour I checked on the hardware and almost all the rust was gone. I dumped the contents of the drum through a strainer, which made separating the hardware a breeze. What was left was almost completely clean steel, certainly clean enough to use once I blew the last of the grit away with an air hose.I ran a few more handfuls of hardware through this machine with the same results. I also ran a really cheap set of rusty no-name sockets that I bought at (yet another) yard sale. I keep junk sockets around in case I need to modify them for odd sizes or special uses, and these followed me home to be added to the "just in case" pile. The sockets came out fairly clean. The chrome plating is peeling off and while the tumbler knocked off any rust and loose bits of plating, it didn't take everything down to bare metal. That's fine, however, because it did most of the dirty work for me while I was doing something else. I can always give one of these sacrificial sockets a once-over on the wire wheel if I need to weld or modify it, but at least I'm starting with something relatively clean and rust-free.If you tumble steel parts or hardware, just remember that what comes out will be prone to re-rusting pretty quickly. This is because you've abraded off any protective oxide layers that were on the metal. It's a good idea to blow off any remaining media and then oil the metal to protect it. Also be aware that touching the raw metal with bare skin can cause it to rust faster, as the salts and acids in your perspiration all cause oxidation. I usually wear nitrile gloves in the garage so this isn't much of a problem for me.When I pulled this dainty little thing out of the box, I figured it would be good for a couple of uses at best before the motor burned out or something broke. So far I'm pleasantly surprised. It's put in a few hours of work with no complaint and nothing broken, and it does a good job of removing light to moderate rust. The aluminum oxide is a worthwhile investment (I think I paid $20 for 25 pounds or so, and I could've gotten a way better deal if I'd shopped around). Long term durability is still a question of course so we'll see how that goes, but so far this thing punches above its weight. ## Frequently Bought Together - Rock Tumbler Kit, K1 Professional Large 2.5LB Capacity Edition - Memory Function, Digital Timer & Variable Speeds: Create Stunning Gems Full Accessories Included - Rock Tumbler Polishing Grits and Ceramic Tumbling Media Kit | Essential for Polishing, 4 Steps Rock Tumbling Refill Media, Polish up to 25 lbs of Rocks, Work with Any Rock Tumblers, for More Tumbles --- ## 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.tn/products/413531948-komestone-rock-tumbler-kit-k1-professional-large-2-5lb-capacity](https://www.desertcart.tn/products/413531948-komestone-rock-tumbler-kit-k1-professional-large-2-5lb-capacity) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-23*