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Professional Rock Tumbler Kit, Rock Polisher with Extra 5 Belts

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Free shipping on orders over $29.99

$59.98

$ 27 .99 $27.99

In Stock
  • 【 EASY TO GET THE WONDERFUL GEMSTONES 】KoolStone Rock Tumbler is a fairly simple machine which has the sole purpose of taking ordinary looking rocks, turning them over and over in a mixture of grit and water and polishing them into smooth, round, brilliant stones.
  • 【 2.5LB LARGE CAPACITY & 75% QUIETER 】An updated features is that KoolStone Rock Tumbler has a large 2.5LB capacity. Which allows to tumbler more rocks each time. Another improvement is the quieter barrel. Rubber material which has 75% quieter than most plastic barrel.
  • 【 FASTER POLISHING TIME & BETTER POLISHING RESULTS 】 3-speed controls (providing more granular tumbling results), a 9-day timer (with automatic shutoff feature and memory function), all displayed on clear screen, letting you easily hone your settings for precise tumbling each time.
  • 【 EVERYTHING YOU NEED FOR TUMBLING IS HERE 】 KoolStone Rock Tumbler has everything you need to create polished gemstones. Rock tumbler, 2.5LB capacity barrel, 1LB for 9 different types of rough gemstones, 3 belts and 4 polishing grits and ceramic contact media, sifter, jewelry fastenings, and illustrated tutorial guide. Just tumbling right away!
  • 【 YOU ARE ALWAYS THE FIRST FOR US & 2 YEAR WARRANTY】 Gifts for adults and kids. If you are just starting out or perhaps you are looking for some quality family time with your children, the KoolStone Rock Tumbler Kit is an ideal choice. Offer 2 year warranty to protect your rock tumbler. Any problems, please feel free to contact us. We will do our best to help you. GET 100% SATISFACTION.


Product Description

Whether you are 9 or 99, it's never too late to start a hobby!

rock tumbler
rock tumbler
rock tumbler for adults
rock tumbler for adults
rock tumbler for adults

Welcome to Your Creative Journey with KoolStone!

We’re amazed by the beautiful creations you craft with your rock tumbler! Share your stunning results with us, and we’ll showcase your work across our Amazon page and social media—your creativity deserves to shine.

Pro Tip: For that perfect shine, pair your tumbler with our high-quality polishing grits kit (don’t forget to add it to your cart!). Combined with soap water, mineral oil, and patience, they’ll transform rough rocks into dazzling jewels for jewelry, crafts, or your collection.

Have concerns? We’re here to help—quickly and cheerfully. Just reach out, and our team will ensure a seamless experience. Your satisfaction is our priority!

Keep creating, keep inspiring, and let’s bring your vision to life—together.

KoolStone– Where Imagination Meets Craftsmanship.

FAQs About KoolStone Rock Tumblers

1. Can you put regular rocks in a rock tumbler? And Can the rock tumbler be used for sea glass?

You will want to avoid soft rocks as they might just fall apart when you add them to a rock tumbler and some really hard rocks might damage your tumbler. And the rock tumbler can be used to polish sea glass effectively!

2. How long does it take to polish rocks in a rock tumbler?

For beginners, the answer can come as a bit of a shock as it could be one week or one month to tumble rocks to a polish that you are happy with. Patience is a virtue in this hobby. The end result can be worth the wait as they look great when they are finished.

3. If my belts broken, how can I do?

Belts might break after a long time use. No worries, please feel free to reach out us to get the replacement.

4.What other items can you tumble?

If you’ve found some coins then you can throw those in the rock tumbler. A rock tumbler will help clean it giving it a nice shine.

Other than coins you can also place shells inside a rock tumbler.

IMPORTANT TIPS:

1. Mind the Noise: Tumbling machines can be quite noisy. We recommended that you keep it in the garage so that you don't disturb your neighbors.

2. Don't wash grits down the drain! It will create a clog that is impervious to drain cleaner. Rinse the grits steps outside using a garden hose.

3. Use mineral oil for extra shine! If you want your finished stones to be really shiny, coat and polish the stones with mineral oil.

4. Notice: If any part is missing, please take a moment to reach out to us for a replacement or compensation. Thank you for your patience and understanding!