The FIRST and ONLY noise-reduction & brushless motor rock tumbler available on the market.
1 Year 𝐖𝐚𝐫𝐫𝐚𝐧𝐭𝐲- Special Bonus Just for You! The 𝐰𝐚𝐫𝐫𝐚𝐧𝐭𝐲 covers accessories replacement, techical support, 𝟐𝟒/𝟕 𝐜𝐥𝐚𝐢𝐦 𝐡𝐨𝐭𝐥𝐢𝐧𝐞 and so on. 𝐌𝐚𝐤𝐞 𝐲𝐨𝐮𝐫 𝐦𝐨𝐧𝐞𝐲 𝐰𝐨𝐫𝐭𝐡 𝐞𝐯𝐞𝐫𝐲 𝐩𝐞𝐧𝐧𝐲.
CUTTING-EDGE BRUSHLESS MOTOR, UNMATCHED IN THE MARKET — C1 Pro Max rock tumbler boasts an unbeatable brushless motor, providing lightning-fast and highly effective tumbling action that leaves your gems and rocks polished to perfection. We take pride in being the pioneers of the brushless motor rock tumbler, currently the first and only one available on the market.
6X QUIETER WITH NOISE-REDUCTION COVER, PERFECT FOR ANY ENVIRONMENT — Experience the tranquility of tumbling with the noise-dampening cover that makes tumbling operations quieter than ever before. Ideal for enthusiasts who enjoy tumbling indoors or have limited space. Moreover, the rubber barrel reduces noise by 75% compared to other plastic barrels.
EXPEDITED POLISHING AND SUPERIOR RESULTS — With 3-speed controls allowing for more precise tumbling, a 9-day timer featuring automatic shutoff and memory function, all conveniently displayed on a clear screen, you can effortlessly hone your settings for impeccable polishing results every time.
EVERYTHING YOU NEED FOR GEMSTONE POLISHING RIGHT AT YOUR FINGERTIPS — The KoolStone Rock Tumbler includes a complete set of tools required for creating exquisite polished gemstones. Unbox and discover the rock tumbler itself, equipped with a 3LB capacity rubber barrel, 1LB of rough gemstones in 9 different varieties, 2 durable belts, 4 types of polishing grits, a sifter, mesh strainer and ceramic pellets,along with jewelry fastenings and an illustrated tutorial guide. Start tumbling right away!

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KoolStone–1 Year Replacement Warranty
Returns
30-day refund / replacement
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This is a great little machine. It’s a well built product, it’s super easy to use, and it comes with very good instructions, even suggesting what kinds of rocks to tumble together and what can happen if you tumble the wrong rocks together. (If you are a beginner like me and you find the rocks are disintegrating or it seems like it’s not working, keep working at it, it takes practice.) I’m glad I spent a little extra for the brushless AND the fact it works within an enclosed case, it’s much quieter than others I’ve seen friends use.

There is an offer to obtain additional rocks and an extended warranty. I almost wrote this off as a gimmick but emailed the request anyway and to my delight Daisy responded the next day! And I actually received the extra rocks 3 days after she responded! She even followed up to make sure I got them. This company could teach a class on customer service.

This is a quality tumbler that is well made, easy to operate and appears to be a workhorse after 6 months of continuous use.

The tumbler is pretty quiet with rubber barrels and an enclosure to dull the sound of the tumbling action. Minimal maintenance required. A drop of oil on the belt every month or so and that’s it. The barrels are easy to open and close with no leaking. Holds about 2.5 lbs of material per tumble at 2/3rds of barrel capacity. I’ve had good results tumbling both hard rocks such as agates and softer rocks like obsidian with the right recipe.

I have 4 Koolstone tumblers running 24/7. I had an issue with a stripped lid attachment on the handle on one barrel. Koolstone customer service responded within two days and sent a new barrel at no charge within a week. The company stands by their product.

Definitely recommend for rock tumbler hobbyists.

Works great and doesn’t draw too much power! Very durable, quiet, doesn’t leak, and perfect size. Great value for the money.

The good : This came with a lot of useful tools and information that my Nat Geo tumbler did not come with such as a screwdriver for just in case, very detailed directions, teflon tape to preserve the integrity of the barrel, and a replacement belt, just to name a few things. It also came with a bag of rocks and some ceramic media in addition to the grit packets. I also liked that it goes into detail about the importance of the Mohs hardness scale and how to use it to get better results.

Discount: 29%