Rank Product Name Score
1 NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings and detailed Learning Guide - Great STEM Science kit for Mineralogy and Geology enthusiasts NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings and detailed Learning Guide – Great STEM Science kit for Mineralogy and Geology enthusiasts
Discover with Dr. Cool — Dropship
9.7 GET ON AMAZON
2 NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit-Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings and detailed Learning Guide - Great STEM Science kit for Mineralogy and Geology enthusiasts NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit-Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings and detailed Learning Guide – Great STEM Science kit for Mineralogy and Geology enthusiasts
Discover with Dr. Cool — Dropship
9.6 GET ON AMAZON
3 National Geographic Professional Rock Tumbler Kit- Advanced Features Include Shutoff Timer & Speed Control - 2Lb Barrel, 1Lb Gemstones, 4 Polishing Grits, Jewelry Fastenings & Learning Guide National Geographic Professional Rock Tumbler Kit- Advanced Features Include Shutoff Timer & Speed Control – 2Lb Barrel, 1Lb Gemstones, 4 Polishing Grits, Jewelry Fastenings & Learning Guide
Discover with Dr. Cool
9.3 GET ON AMAZON
4 Discover with Dr. Cool Hobby Rock Tumbler – Easily Transform Rocks into Gemstones Discover with Dr. Cool Hobby Rock Tumbler – Easily Transform Rocks into Gemstones
Discover with Dr. Cool
9.0 GET ON AMAZON
5 Lortone 3A Single Barrel Tumbler Lortone 3A Single Barrel Tumbler
Lortone
8.7 GET ON AMAZON
6 Tru-square Metal Products Heavy Duty Rotary Tumbler with 15 lb Capacity Tru-square Metal Products Heavy Duty Rotary Tumbler with 15 lb Capacity
TRU-SQUARE METAL PRODUCTS
8.6 GET ON AMAZON
7 Lortone 33B Rotary Rock Tumbler Lortone 33B Rotary Rock Tumbler
Detector Supply Company
8.3 GET ON AMAZON
8 Dan & Darci Advanced Professional Rock Tumbler Kit - with Digital 9-Day Timer and 3-Speed Settings - Turn Rough Rocks into Beautiful Gems Dan & Darci Advanced Professional Rock Tumbler Kit – with Digital 9-Day Timer and 3-Speed Settings – Turn Rough Rocks into Beautiful Gems
Dan & Darci
8.3 GET ON AMAZON
9 NATIONAL GEOGRAPHIC Grit Refill for Rock Tumbler - Also works with Lortone, Thumler and more NATIONAL GEOGRAPHIC Grit Refill for Rock Tumbler – Also works with Lortone, Thumler and more
Discover with Dr. Cool — Dropship
8.2 GET ON AMAZON
10 National Geographic Rock Tumbler MEGA Refill Kit - 3lbs Gemstones of 9 Varieties Including Tiger National Geographic Rock Tumbler MEGA Refill Kit – 3lbs Gemstones of 9 Varieties Including Tiger’s Eye, Amethyst and Quartz – 4 Grades of Grit, Jewelry Fastenings and Detailed Learning Guide
JMW Sales, Inc.
7.8 GET ON AMAZON

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