SKU: 18074469944

Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Durable Leak-Proof Polisher with 7-Day Timer, Black, Model NGHOBBYTUMBLER2

$79.92 $88.80
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Durable Leak-Proof Polisher with 7-Day Timer, Black, Model NGHOBBYTUMBLER2The Blue Marble Rock Tumbler Kit is an exceptional educational toy designed for both kids and adults who are passionate about geology and crafting. This kit allows users to create their own stunning gemstones from rough rocks, making it an ideal introduction to the world of rock tumbling and gemstone polishing. Constructed with high quality materials, this rock tumbler features a robust design that ensures longevity and optimal performance. The

The Blue Marble Rock Tumbler Kit is an exceptional educational toy designed for both kids and adults who are passionate about geology and crafting. This kit allows users to create their own stunning gemstones from rough rocks, making it an ideal introduction to the world of rock tumbling and gemstone polishing.

Constructed with high-quality materials, this rock tumbler features a robust design that ensures longevity and optimal performance. The durable motor includes adjustable time and speed control settings, allowing users to customize their tumbling process. The improved leak-proof barrel is fitted with a stainless-steel lid, enhancing safety and ease of use. Additionally, this all-in-one kit includes 1/2 pound of rough rocks containing nine different types of gemstones, jewelry fastenings, tumbler grit, a strainer, and an innovative GemFoam polishing foam that guarantees dazzling results.

Key Features:
  • Create Your Own Gemstones: Transform rough rocks into beautifully polished gemstones with ease.
  • Durable Motor: Features time and speed control settings for a customizable tumbling experience.
  • Leak-Proof Barrel: Improved design with a stainless-steel lid for enhanced durability and safety.
  • All-in-One Kit: Comes with 1/2 pound of rough rocks, nine gemstone types, and essential tumbling accessories.
  • GemFoam Polishing: Unique GemFoam technology adds incredible shine to your finished gemstones.
  • Educational Value: A high-quality hands-on science toy that promotes learning and creativity.
  • Exceptional Service: Backed by a commitment to customer satisfaction; if your experience isn't stellar, it will be made right.

The Blue Marble Rock Tumbler Kit is perfect for hobbyists, educators, and families looking to explore geology and creativity together. It offers a fun and engaging way to learn about the science of rocks while crafting beautiful gemstones. This kit is not only educational but also fosters creativity and patience, making it a valuable addition to any home or classroom.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18074469944

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4.0 ★★★★★
Based on 9 reviews
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Product Reviews
D
Verified Purchase
Dan D.
Omaha, US
★★★★★ 5
Perfect rotary tool for light or heavy project with power.
Style: Corded, Style: Corded
Polishing is my main purpose for using rotary tool. I've had hardell and dremmel before. Heavy use of these tool they get hot and wear out fast. Wen rotary tool is better. It's heavy duty, twice as big, 1.5 lbs, it has big motor and variable speed without the noise. It's perfect for hobbies and for 3in polishing or sanding pad. It's polarized electric plug in. The attachments came with it is superior than any rotary tool I've used. Its a solid product. I can already tell undoubtedly this is a good product if not the best. The other rotary tool have the lock chuck button opposite of the power button which premarturely damages internal mechanism accidentally use the lock button while still spinning. Wen is power button is switch away from chuck lock button. It's not too big nor too small to use. The life expectancy for Wen rotary tool will likely be three times longer than dremmel or hardell in my guess because of its design.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
S
Verified Purchase
Sean B.
Port Orchard, US
★★★★★ 5
Love this thing. But, love the company even more!
Style: Corded
This is my 1st rotary tool ever. So excited because the things you can do are limitless. I received my tool and only used it 3 times. I was so happy I bought this but then the power switch broke, oddly. I said well, you get what you pay for right? Well, I called the phone number listed here on Amazon, and they answered. I briefly explained what happened, and just asked if I could send them the main unit for replacement. The customer service person asked for my details, order number, etc. Then within a few minutes, he said, Sir, we're just going to send you a new one, if that's okay. I was like huh? I said, I know it's been 8 months and that really would be awesome because I love it! He said we stand behind all of our products and it's the least we can do, and we apologize for any inconvenience. I was like huh? Lol. It really is hard to find service like this these days. To be so excited about a 20 dollar tool, that you've always wanted but just never got around to getting, spending 20 bucks and not only getting a fantastic tool, but getting the authentic service we all deserve, priceless! Thank you so much Wen and Amazon! Hope this helps others that are interested in this really useful and fun tool.
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Reviewed in the United States on November 12, 2023
V
Verified Purchase
Valarie Venuti
Louisville, US
★★★★★ 3
Safety concerns
Style: Corded
The variable speed when base is nice and works very well. However the flexible accessory shaft has a major design flaw., there is no locking mechanism on the flexible shaft making it impossible to tighten the collet down to hold the bit in place. Making it easy for the bit to come out of the flexible shaft while it is rotating at any speed.
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Reviewed in the United States on May 3, 2026
E
Verified Purchase
erich
Natrona Heights, US
★★★★★ 5
For the money this is amazing!
Style: Corded
I love this rotary tool. Mind you it’s not a 150$+ dremmel but it is a workhorse and very reliable. I see these comments of disappointed people saying it’s not up to there standards and there dremmel is better. I don’t understand that. This is a 20$ rotary tool and the best one for that price you can find. Most of these reviews are comparing to high end expensive dremmels and that doesn’t make sense to me. Anyway I like the rotary tool very much and the first thing I did was buy the keyless Chuck made by wen so I don’t have to deal with collets and have them wear out or keep changing them when I need to use a different size bit. Best investment I made. Makes life so much easier. I ended up buying 2, one for the rotary and one for the flex shaft. Also if you have never used a flex shaft you need to understand that you have to take the collar off and slide the insert out of the flex shaft so you can clamp the rotary tool on it and then screw it on where you removed the collar. I recommend every 20 to 30 hours of use with the flex shaft take the insert out and wipe the grease off and reapply a light amount of grease. That way it doesn’t heat up. I’ve found that with this particular flex shaft graphite does not work so well like other models. It will get hot with graphite. I’ve found that Valvoline red high temp bearing grease works the absolute best. You can buy it in the tube here on Amazon or at you’re local auto parts store. The high temp is what you need and it prevents grease from melting down into the handle of the flex shaft. All in all this is a win win if you understand how to maintain and take care of it. I originally got one of these because my grandfather has one and it’s over 12 years old and it’s still working. Probably has a couple thousand hours of use on his. Take care of you’re stuff it will take care of you…
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Reviewed in the United States on October 24, 2023
R
Verified Purchase
Richard
Bozeman, US
★★★★★ 5
74 monte carlo Resto
Model: NewSLS50_52
Great product easy installation with sheets cut to size,using for Classic car Restoration,floor pan and doors
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026

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