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Item #:
77213040
K2 Ultra Quiet Rock Tumbler Kit - 3LB Professional Rock Polisher | Quiet Brushless Motor, Up to 6X Noise Reduction, Adjustable 9-Day Timer & Speeds,
3 Sustainability Highlights
Item #:
77213040
PHP 10306
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Order now and get it around Monday, August 24
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KomeStone K2 Elite noise-reduction & cutting-edge brushless motor rock tumbler is the first and only rock tumbler that built in with the cutting-edge brushless motor, providing this advanced rock tumbler with more than 20,000 hours work and service life and the lifespan beyond 10 years.
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What Stands Out
Ultra Quiet Motor
Equipped with a cutting-edge brushless motor, this rock tumbler operates quietly, making it perfect for home use without disturbing others while polishing precious stones.
Large Capacity Barrel
The extra-large 3 lbs barrel allows for more rocks to be polished at once, maximizing efficiency and saving time compared to smaller models, making it ideal for serious hobbyists.
STEM Gift Idea
This rock tumbler promotes STEM learning, engaging users of all ages in geology and craftsmanship, while serving as an educational gift that cultivates curiosity and creativity in rock collecting.
Product Details
- Ultra Quiet Performance for Home Tumbling — The K2 Quiet 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 — ideal for families, beginners, and hobbyists who value a peaceful environment.
- Covered Barrel Design for Family-Safe Operation — The noise-reduction cover does double duty: it contains noise AND acts as a protective barrier that prevents children from touching the rotating barrel during operation. This makes the K2 Quiet Elite safe for family use with children ages 8 and up — parents can run tumbling cycles with peace of mind, knowing little hands stay clear. Perfect for family science projects, STEM learning activities, and introducing kids to geology in a safe, controlled way.
- Premium Brushless Motor for Long-Lasting Performance — The K2 Quiet 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. Whether it's your first rock tumbler or an upgrade from a basic model, the brushless drive system ensures reliable performance for years to come.
- 3LB Capacity for Every Skill Level — The K2 Quiet 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. Whether you're a first-time tumbler, a family exploring geology together, or an experienced hobbyist, the 3Lb Quiet Premium capacity handles projects of any size.
- Smart Controls for Consistent Results — 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 Quiet Elite picks up exactly where it left off without needing to be reprogrammed. Simple enough for beginners, reliable enough for experienced users — consistent results every time.
- Complete Kit for Day-One Start — Everything needed to start tumbling is included in the box — the rock 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. Great as a first rock tumbler for kids, teens, and adults — no additional purchases needed to start polishing stones from day one.
- Step-by-Step Guidance for Better Tumbling — The included full-color guidebook covers everything from initial setup to finishing your first batch — with detailed polishing techniques, troubleshooting steps, and practical tips like adding soapy water during polishing stages. Our US-based support team is also available anytime for polishing questions or machine help. Together, the comprehensive guidance and dedicated support help adults, beginners, teens, and families make real progress — from rough stones to finished keepsakes. Makes a complete geology or STEM gift for rock enthusiasts of all ages.
- Replaceable Key Parts for Long-Term Ownership — Core components are designed to be individually replaceable, not discarded. The motor, control panel, drive belt, rubber barrel, and metal lid kit are each available as replacement parts directly from KomeStone, with no planned end to parts supply. This stone polisher isn't a one-season purchase — it's a permanent part of your hobby setup.
| Power Source | Corded Electric |
| Material Type | Cutting-Edge brushless motor, Please email to our after-sales service center ( [email protected] ) 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 |
| Color | Black |
| Item Weight | 3.9 kg |
| Brand Name | KomeStone |
| 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: [email protected] ) |
| Unit Count | 1 Count |
| Item Type Name | Rock Tumbler |
| Manufacturer | KomeStone |
| Model Number | CA-KS0515RT46 |
| Manufacturer Part Number | CA-KS0515RT46 |
| Brand | KomeStone |
| 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: [email protected] ) See more |
| Material | Cutting-Edge brushless motor, Please email to our after-sales service center ( [email protected] ) 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 See more |
What's in the box
Warranty Card ( Lifetime customert service email: [email protected] )
1 x tumbler machine, 1 x 3 lb barrel, 1.5m AC adapter
1 lb rough stones, illustrated tutorial learning guide
1 extra belt for spare use and 4 polishing grits
1 x sifter, 1 x screwdriver, 1 set jewelry Fastenings
Who Should Buy?
-
Hobbyist Rock Collectors
Ideal for individuals keen on polishing rocks with a quiet, efficient motor for high-quality finishes.
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STEM Education
Great for teaching concepts of geology and physics through hands-on experience in rock tumbling activities.
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Gift Seekers
Perfect as a thoughtful gift for adults and children interested in geology and natural sciences.
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Professional Jewelers
Less suitable for jewelers needing advanced finishing techniques or specialized equipment beyond basic tumbling.
Product Description
Sustainability Highlights
This product has sustainability features recognized by trusted certifications.
Recycled materials
Contains at least 50% recycled material. As certified by
Global Recycled Standard (GRS) certified products contain recycled content that has been independently verified at each stage of the supply chain, from the source to the final product and meet social, environmental, and chemical requirements. The purchase of Global Recycled Standard (GRS) certified products supports the use of recycled content in the supply chain. A product must contain at least 50% certified GRS material to qualify for inclusion in Climate Pledge Friendly. Learn more about this certification
- Certification Body
- TUV Rheinland (China) Ltd
- Certification Number
- TE-00339112
Safer chemicals
Made with chemicals safer for human health and the environment. As certified by
Global Recycled Standard (GRS) certified products contain recycled content that has been independently verified at each stage of the supply chain, from the source to the final product and meet social, environmental, and chemical requirements. The purchase of Global Recycled Standard (GRS) certified products supports the use of recycled content in the supply chain. A product must contain at least 50% certified GRS material to qualify for inclusion in Climate Pledge Friendly. Learn more about this certification
- Certification Body
- TUV Rheinland (China) Ltd
- Certification Number
- TE-00339112
Worker well-being
Manufactured on farms or in facilities that protect the rights and/or health of workers. As certified by
Global Recycled Standard (GRS) certified products contain recycled content that has been independently verified at each stage of the supply chain, from the source to the final product and meet social, environmental, and chemical requirements. The purchase of Global Recycled Standard (GRS) certified products supports the use of recycled content in the supply chain. A product must contain at least 50% certified GRS material to qualify for inclusion in Climate Pledge Friendly. Learn more about this certification
- Certification Body
- TUV Rheinland (China) Ltd
- Certification Number
- TE-00339112
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is included in the K2 Elite Professional Rock Tumbler Kit?
Answer: The K2 Elite Professional Rock Tumbler Kit comes with everything you need to start polishing your rocks. This includes the tumbler unit, a high-quality brushless motor for consistent performance, multiple grits of polishing media, and a user manual for guidance. The comprehensive kit ensures you can achieve excellent results right from the start, making it ideal for both beginners and experienced rock collectors. Additionally, the included polishing grits allow users to experiment with different results, facilitating a fun learning experience. -
Question:
How does the ultra-quiet feature of the K2 Elite Tumbler work?
Answer: The ultra-quiet feature of the K2 Elite Tumbler is made possible by its brushless motor technology that minimizes noise levels during operation. This is particularly beneficial for users who may want to run the tumbler at night or in noise-sensitive environments. Unlike traditional motors, which can produce unwanted sounds, the brushless motor offers a more peaceful experience, allowing you to work or relax nearby without disruptive noise. Ideal for home use, this feature complements the hobbyist's lifestyle. -
Question:
What types of rocks are suitable for tumbling with this kit?
Answer: The K2 Elite tumbler is designed to work efficiently with a variety of rocks such as quartz, jasper, agate, and other semi-precious stones. The kits utilize different grits of polishing media tailored for specific stone types, enabling you to transform rough rocks into beautifully polished gems. This versatility makes the kit perfect for both seasoned rock hounds and beginners exploring different types of stones. Whether you're crafting unique jewelry or showcasing your collection, this tumbler caters to diverse rock tumbling needs. -
Question:
Can I use the K2 Elite tumbler for other materials besides rocks?
Answer: Yes, beyond rocks, the K2 Elite tumbler can also be used to polish materials like glass, ceramics, and other hard objects. This multifunctional use means you can create unique polished pieces for various DIY projects or crafts. By adjusting the tumbling time and media used, you can achieve excellent results with different materials. It's perfect for hobbyists looking to expand their creative projects beyond standard rock polishing. -
Question:
How long does it typically take to polish rocks using this tumbler?
Answer: Polishing rocks with the K2 Elite tumbler usually takes between three to four weeks, depending on the type of rocks and the desired finish. The polishing process generally involves multiple stages: coarse grinding, medium grinding, fine polishing, and final polish. Each stage has a specific duration, and following these steps ensures the best results. Whether you're aiming for a smooth finish or a high gloss, taking your time is key to achieving stunning polished rocks. -
Question:
Is the K2 Elite tumbler safe for beginners?
Answer: Absolutely, the K2 Elite tumbler is designed with user-friendliness in mind, making it a great choice for beginners. The clear instructions included in the kit guide users through the tumbling process, covering safety precautions and best practices. Furthermore, its robust build and advanced features reduce the likelihood of user error. Newcomers can confidently explore the fascinating hobby of rock tumbling without feeling overwhelmed, creating a productive and enjoyable experience. -
Question:
What is the maintenance required for the K2 Elite tumbler?
Answer: The maintenance for the K2 Elite tumbler is minimal but important to ensure longevity and optimal performance. Regularly check the barrels for any wear and tear and clean them after each use to avoid contamination of different grits. Additionally, make sure to periodically inspect the motor for any dust buildup and keep the exterior clean. By maintaining your tumbler, you'll ensure smoother operations and consistently great results in your rock tumbling projects. -
Question:
Can I run the K2 Elite tumbler continuously for several days?
Answer: While the K2 Elite tumbler is designed for extended use, it's recommended to let it run for a few days followed by a break to cool down. This practice helps prolong the lifespan of the motor and minimizes wear and tear. Hobbyists often find that running the tumbler at intervals allows them to monitor progress and make adjustments as necessary. Regularly giving the tumbler a break ensures consistent performance and allows for better tracking of the tumbling process. -
Question:
What sets the K2 Elite tumbler apart from other rock tumblers?
Answer: The K2 Elite tumbler stands out due to its state-of-the-art brushless motor, significantly reducing noise and enhancing durability compared to conventional tumblers. This innovative design not only improves the user experience but also contributes to the efficiency of the polishing process. Additionally, the user-friendly interface, quality materials, and included polishing media kit make it a comprehensive solution for rock collectors. For those serious about rock polishing, this tumbler offers superior performance and convenience. -
Question:
Where can I buy the K2 Elite Professional Rock Tumbler Kit?
Answer: You can purchase the K2 Elite Professional Rock Tumbler Kit from Ubuy in Philippines. Ubuy is known for offering a wide selection of products, along with user-friendly service and a streamlined shopping experience. Whether you're an avid rock collector or just starting out, Ubuy provides easy access to this high-quality rock tumbler, ensuring a simple and efficient purchasing process.
KomeStone Rock Tumblers CA-KS0515RT46 Editorial Review
The KomeStone K2 Elite Professional Rock Tumbler Kit is a top-notch rock polisher that offers a quiet and efficient tumbling experience. With its cutting-edge brushless motor, this tumbler is perfect for both adults and kids who are looking to polish rocks and other items. One of the standout features of the K2 Elite is its noise-reduction capabilities. The sealed housing and built-in otter hourse help to minimize noise, making it ideal for use indoors or in shared spaces. Users praise the tumbler for being exceptionally quiet compared to other models on the market. The K2 Elite has a generous capacity, with a barrel that can hold up to 3 lbs of rocks. Users have reported satisfactory results from tumbling a variety of items, including rocks, sea glass, coins, and jewelry beads. The included ceramic medias provide cushioning and protection from scratches, ensuring that your rocks come out polished and pristine. Customer service is another standout aspect of this product. Users appreciate the responsiveness and helpfulness of the KomeStone support team. They are quick to address any concerns or issues, and their communication is fast and easy, providing a positive buying experience. Overall, the KomeStone K2 Elite Professional Rock Tumbler Kit is highly recommended for beginners and experienced rock tumblers alike. It offers quiet operation, a generous capacity, and excellent customer service. With this tumbler, you can expect great results in polishing a variety of items.
Customer Reviews & Ratings
586 customers ratings
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5 Star
78%
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4 Star
9%
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3 Star
3%
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2 Star
2%
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1 Star
8%
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Pros
- Ultra quiet operation
- Generous 3 lbs capacity
- Suitable for tumbling rocks, sea glass, coins, and jewelry beads
- Effective noise-reduction features
Cons
- No specific Cons mentioned in the reviews presented
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PHP 10306
Order now and get it around Monday, August 24
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Features & Benefits
- KomeStone K2 Elite rock tumbler with cutting-edge brushless motor
- Provides more than 20,000 hours work and service life
- Lifespan beyond 10 years
- Top-of-line manufacturer advanced professional Rock Tumbler Kits
- Includes all functions and accessories needed for rock tumbling and polishing
- Transforms raw rocks into stunning gems for jewelry, crafting, and collections
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