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KomeStone

KomeStone Rock Tumbler Kit, K1 Professional Large 2.5LB Capacity Edition - Memory Function, Digital Timer & Variable Speeds: Create Stunning Gems Full Accessories Included

    • Based on 1,846 reviews
Condition: New
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$69.98 Why this price?
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, May 22
Order within 15 hours and 8 minutes
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Color: Brush Motor: K1


Features

  • Origianal Manufacture & Brand Outlet: KomeStone brand owns the design of this rock tumbler model.
  • Belts are consumable, Please reach out to us for 5 extras for spare use( WORTH $12)!
  • K1 Classic Edition: Elevating fun, simplicity, and flexibility beyond basic tumblers with advanced features
  • 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.
  • 2.5 LB EXTRA LARGE CAPACITY & QUIETER: We use the 100% soft rubber barrels which can absorb the impact of the tumbling rocks and its 75% quieter than that of other plastic drums, which likes the sound of a working dishwasher. With 2.5lbs extra large barrel, that means you can polish more rocks at once than 1 lb drum.
  • COMES WITH EVERYTHING YOU NEED: Including the tumbler machine, the barrel, 1lb rough rocks, 3 belts, 4 polishing grits and ceramic filler media (As a gift in package) and other accessories, etc. Especially the full-color Instruction book, detailed and clear to follow, even a 4 year old kid knows how to use it independently.

Package Dimensions: 12.99 x 9.53 x 5.79 inches


Item Weight: 2.5 pounds


Country of Origin: China


Item model number: KomeStone K1 Classic Edition


Manufacturer recommended age: 8 years and up


Is Discontinued By Manufacturer: No


Manufacturer: KomeStone


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • It's Great
Color: Brush Motor: K1
This tumbler is awesome. If you are on the fence, it is worth it. We are only a couple days into our first phase, but this baby is built solidly. Company pride is evident as there is very detailed instructions included, and there is a phone number and email address for tips. The tub is built with rubber, the lid fits very tight, and the locking lid works perfectly. There are rocks and a full set of resin is included for one "run". The instructions encourage stocking up on belts.. the belts do work hard, so I would assume they wear out easily. It comes with a decent supply of replacement belts. The only downside, which I think is unavoidable is the noise. rolling rocks around in a drum causes noise. Mine is in the basement. ... show more
Reviewed in the United States on May 2, 2024 by virginia
    • Works good. Fun Hobby with Beautiful Results
Color: Brush Motor: K1
Review Image by Michael Hachigian Michael Hachigian
Review Image by Michael Hachigian Michael Hachigian
Review Image by Michael Hachigian Michael Hachigian
Review Image by Michael Hachigian Michael Hachigian
Review Image by Michael Hachigian Michael Hachigian
Ordered this about 3 months ago. Finished my first batch of all 4 steps this week. The pictures above show the results of my first attempt. I got some rocks with a really great shine. Many of the rocks I tumbled had white edges even though the face was smooth and shiny. Looking closely, the edges appear to have micro-pitting which I expect means I didn't provide enough cushion in the tumbler. I am very happy with my initial results, but it is clear that to get excellent results will require further experimentation. The tumbler worked without issue. I filled it about halfway and added the grit package and water. Some of the reviews indicated issues with the belt, but I didn't experience any issues with the actual tumbler, belt, or stand. I noticed that on speed 3, the stand did tend to vibrate around. I recommend two sided adhesive to keep it firmly in place. The tumbler didn't leak at all. The instructions were great! Provided guidelines for each step. The pictures of the rocks included as a samples were very nice. Also provided suggestions for some additional ingredients to experiment with. One suggestion is to in between each step after rinsing the rocks, add some dish soap and water and turn on speed 1 for 1-2 hours. This does a great job of cleaning the rocks in between the steps. This also helps after the polish to get a shinier polish. Inside the kit was a bonus gift if you contacted the support group. I did contact the support group and found them very responsive. They did send me 5 additional belts, although I have not yet needed to replace the original. Overall, the product seems high quality and able to last for many years of tumbling. Responsive support is available for the product if there are problems. The final results of the tumbling process can be very nice, but it is clear that the quality of the results rely upon the experience of the operator, rocks selected to tumble, ingredients to tumble in, and time and speed of the tumbler. ... show more
Reviewed in the United States on October 17, 2023 by Michael Hachigian Michael Hachigian
    • Easy to use, well made, large capacity, small footprint.
Color: Brush Motor: K1
I’m really glad I bought this tumbler. I compared it to the National Geographic version at Joann’s and although they were very similar in price (with coupon) I went with this one. The full line of Komestone products, their good reviews and customer service record sold me. Amazon shipped it quickly. My first batch of rocks is tumbling along. Tumbling rocks is noisy but the sound is not excessive or disruptive. My tumbler is in the garage where it hums along in solitude. I will say that the improved grit does speed the process up. I’m following the chart in the instruction booklet but my stones are ahead of schedule. Tumbling rocks with this setup is very easy. Patience is required but I’m quite sure it’s worth the wait. Trust the process. ... show more
Reviewed in the United States on February 19, 2024 by B. Furr
    • Great tumbles
Color: Brush Motor: K1
It’s tumbles very quietly, works great
Reviewed in the United States on January 3, 2024 by Gangleyman
    • Great easy-to-use rock tumbler
Color: Brush Motor: K1
I had a rock tumbler when I was a kid and I bought this to use with my two young children. It's very easy to set up and start using and comes with everything needed for the first batch of rocks (including a fun mix of rough rocks and semi-precious stones). We've had a lot of fun looking for good rocks around the neighborhood, on the beach, etc. to use in subsequent batches. So far it's held up very well. The plastic belt broke after 4-5 batches, which is not surprising. I contacted customer service and Anne promptly sent me replacement belts at no cost. Overall, a great tumbler for the money and excellent customer service. Highly recommended. ... show more
Reviewed in the United States on March 6, 2024 by Jonathan
    • The best part is the customer service
Color: Brush Motor: K1
I don’t usually write reviews so I’ll give it my best. I love this tumbler even though it had a “rocky” start. The motor stopped working before getting through all my stages. Which was devastating because I literally have over 100 pounds of raw rocks I’ve collected. BUT… The customer service I received from the product company was just amazing. They were very kind, very professional and helped me with my issue in a very smooth process. They sent me a replacement base free of charge and I received it in less than a week. The new tumbler base works great and I’m finally almost finished with my original batch of rocks. What I love most about it is how quiet it is versus other brands. Considering that I live in an upper apartment, the noise level was important so that I could still have something I’m passionate about and not disturb my neighbors. Definitely recommend and if there ever is an issue, their customer service response is exemplary and makes up for any bumps in the road. ... show more
Reviewed in the United States on April 3, 2024 by April OBrien

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