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Dan&Darci

Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids All Ages : Geology Toy

    • Based on 8,446 reviews
Condition: New
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$59.98 Why this price?
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Availability: In Stock.
Fulfilled by Amazon
Arrives May 15 – May 16
Order within 19 hours and 24 minutes
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Features

  • Turn rough rocks into polished gems: Discover and learn the fun process of rock tumbling with the Advanced Rock Tumbler. Pour in the rough stones and grit and let the machine do its job!
  • Complete kit: Includes: rock tumbler machine, low-noise barrel (1 lb. capacity), 4 grit packets, 1/2 lb. assorted rough rocks, mesh strainer, jewelry fasteners, gem storage bag, and an illustrated easy-to-follow instruction and learning guide booklet.
  • Powerful quality: Runs on a powerful heavy duty motor that will last for a very long time, and includes a leak-resistant barrel that runs quieter than the other brands.
  • Advanced features: Includes speed controls (providing more granular tumbling results), a 9-day timer (shuts off automatically when you desire), all displayed on beautiful LCD screens.
  • A fun and educational gift for all ages: It's not often that a science project can be fun and engaging, but this kit achieves both! It fascinates children and adults as soon as they pull it out of the box and is a perfect STEM project for any age. It fosters a love for science, geology and mineralogy in a fun and exciting way.

Brand: Dan&Darci


Theme: Geology


Age Range (Description): Kid,Adult


Item Dimensions LxWxH: 12.99 x 9.06 x 5.51 inches


Educational Objective: STEM


Product Dimensions: 12.99 x 9.06 x 5.51 inches


Item Weight: 5.99 pounds


Item model number: DD009


Manufacturer recommended age: 8 years and up


Is Discontinued By Manufacturer: No


Manufacturer: Dan&Darci


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 15 – May 16

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

    • Definitely not the rock tumbler I grew up with!
Remember those old national geographic rock tumblers? They had the red barrel and barely held anything? That's the rock tumbler I had before this one. When I read that this rock tumbler was "suitable for use indoors," I called bull. I plugged it in outside where I was sure to not hear it ruckus and only put a few rocks in the bottom. I followed the instructions on how to proceed with setup and went forth expecting leakage and excessive noise. Imagine my shock when this rock tumbler did neither! It hardly made any noise and no leaks anywhere. I regularly fill the barrel 2/3 of the way and am always amazed with the product I have after a few days. It seems nothing is too much for it. The finished product is always spectacular! The noise is always minimal. I'd have no problem buying this again. If anyone wants a "starter" tumbler, I cannot recommend this one enough. ... show more
Reviewed in the United States on November 16, 2023 by Rachel Anschuetz
    • Very quiet
This is my second one of these. My first one ran nonstop for 5 years.
Reviewed in the United States on November 25, 2023 by ken schippers
    • Tumbler works well, but far too little grit is supplied
The tumbler works well enough, it's very reasonably priced, and generally a good kit. The rocks that come with it are a good starter; there are some findings included for finished rocks; and the instructions are reasonably good (accepting some significant caveats below). There's also an included strainer, but we found it much too small, and just used a small colander from our kitchen. Accepting the good points, there are a few important things to consider: 1) The kit comes with a paltry amount of grit. We followed the instructions to the letter using the small grit packets provided in the box, and just couldn't get a good polish on the included rocks. However, we had also bought a set of additional grit at the same time, so we re-ran exactly the same rocks with proper amounts of grit and got a beautiful polish. The additional grit was exactly the same grade and composition as the original, but its instructions called for 2-3x more grit per run. So, I expect a lot of people will be underwhelmed at the polish they get, not realizing that the minimal amount of grit is likely the problem. Since grit is a consumable that you'll need more of anyway, you can save yourself a wasted month of tumbling by buying more grit and just topping off what comes with the kit (2 tbsp for stages 1 and 2, and 1 tbsp for stages 3 and 4). 2) The tumbler runs fast, even at its slowest speed (seems at least twice as fast as the tumblers I'm familiar with). This means it's on the louder end (we kept it in the garage) and it doesn't seem to do a good job on more angular or larger rocks, because the tumbling action is just too aggressive. Anything under 3/4" diameter and/or mostly round will polish up great—which mostly included the rocks that came with our set—but anything outside that ended up with some unpolished edges (although the smooth/flat parts still polished up well). That stated, you can cheat and use mineral oil to mostly hide the rough edges, but they still won't look as good as they do with a proper polish. (Although, I haven't yet tested if ceramic media or poly pellets could improve this situation by cushioning the rocks during the final polish stage.) 3) The instructions could be better with respect to cleaning, and don't cover burnishing at all. For cleaning between stages, after a thorough rinse I strongly recommend putting the rocks back in the tumbler with warm water and a drop or two of dish soap, and then just running it for an hour on its lowest speed. This will clean out all of the grit from the last stage. Then just re-rinse (the sink is fine in this case, since there's so little grit) and start the next tumbling stage. You may want to burnish as a final step, to get a better shine. There are a number of good guides available, so I suggest just searching for the term "rock burnishing". ... show more
Reviewed in the United States on March 13, 2022 by Justin
    • Awesome little tumbler
It’s an awesome little tumbler. Trying to improve the good vibes in my house with the power behind each stone. Comes with a little booklet that lets you know how long to tumble per stage. If you want an opinion on what they could have added? The plastic pellets would have been nice but I have some. So it’s great! ... show more
Reviewed in the United States on October 24, 2023 by Lehman
    • Good Fit and sized correctly
Seems to operate very well. I like the 3 speed options
Reviewed in the United States on November 16, 2023 by Amazon Customer
    • Great gift quieter than other tumblers
Great product well made
Reviewed in the United States on November 17, 2023 by Good knife great product
    • Great product.
2nd rock tumbler that I bought and this one is better. Good product.
Reviewed in the United States on November 11, 2023 by Jnielsen
    • So far so good
I have used it 7 days a week 24/7 going on 3 months straight. Easy to use , great starter kit .
Reviewed in the United States on November 6, 2023 by Don Cross

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