10 Best Rock Tumblers 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing products, scanning reviews, spending more than 36 hours of research and speaking with our test users, we think the NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit is the one of the Best Rock Tumbler on the market.

# Image Name Brand Price
1
⭐Best Choice
NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit
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 Check price NATIONAL GEOGRAPHIC $$$$$ Check price
2
Best under $100
Advanced Professional Rock Tumbler Kit
Advanced Professional Rock Tumbler Kit - with Digital 9-day Polishing timer & 3 speed settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids all ages : Geology Toy Check price Dan&Darci $$$$$ Check price
3
Best under $50
NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit-Includes Rough Gemstones
NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit-Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings & Detailed Learning Guide - Great Stem Science Kit For Mineralogy & Geology Enthusiasts Check price NATIONAL GEOGRAPHIC $$$$$ Check price
4 Discover with Dr. Cool Hobby Rock Tumbler Discover with Dr. Cool Hobby Rock Tumbler - Easily Transform Rocks into Gemstones Check price Discover with Dr. Cool $$$$$ Check price
5 NSI/Smithsonian 49005 Rock Tumbler NSI/Smithsonian 49005 Rock Tumbler Check price N/A $$$$$ Check price
6
💲Best value for the money
NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit
NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - Gemstone Mix of 9 varieties including Tiger's Eye, Amethyst and Quartz - Comes with 4 grades of Grit, Jewelry Fastenings and detailed Learning Guide Check price NATIONAL GEOGRAPHIC $$$$$ Check price
7 NATIONAL GEOGRAPHIC Rock Tumbler Refill NATIONAL GEOGRAPHIC Rock Tumbler Refill - 3.28 Pounds Tumbling Grit Media for Stone Polisher, Works with any Rock Tumbler Check price NATIONAL GEOGRAPHIC $$$$$ Check price
8
👑Premium Pick
Lortone 33B Rotary Rock Tumbler
Lortone 33B Rotary Rock Tumbler Check price Lortone $$$$$ Check price
9 NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit - 3lbs Gemstones of 9 Varieties Including Tiger's Eye, Amethyst & Quartz - 4 Grades of Grit, Jewelry Fastenings & Detailed Learning Guide Check price NATIONAL GEOGRAPHIC $$$$$ Check price
10 Starter Rock Tumbler Kit for Kids- Includes Rough Gemstones Starter Rock Tumbler Kit for Kids- Includes Rough Gemstones, Polishing Grits, Jewelry Fastenings, and Instructions - Great STEM Science Kit for The Future Geologist, Boys and Girls Ages 8+ Check price Nature Bound $$$$$ Check price

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Best Overall Rock Tumbler

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit
  • MAKE ANY STONE SPARKLE - Polish everyday rocks into dazzling gemstones
  • ENHANCE YOUR ROCK COLLECTION - Or start a new one! Makes all rocks shine like professionally polished stones
  • EVERYTHING IS INCLUDED - This kit includes the tumbler, four polishing grits, sifter, learning guide PLUS nine types of real rough gemstones
  • EASY TO USE - Simple instructions, one-touch settings and an automatic shutoff timer
  • SATISFACTION GUARANTEE - For 131 years, National Geographic has been committed to providing fun and fascinating educational opportunities for children and stands behind this Rock Tumbler with a two-year warranty

Advanced Professional Rock Tumbler Kit – Best under $100

Advanced Professional Rock Tumbler Kit
  • 💎 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.
  • ⚡ 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.

NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit-Includes Rough Gemstones – Best under $50

NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit-Includes Rough Gemstones
  • MAKE ANY STONE SPARKLE and polish everyday rocks into dazzling gemstones
  • ENHANCE YOUR ROCK COLLECTION or start a new one! Makes all rocks shine like professionally polished stones
  • EVERYTHING IS INCLUDED in the kit; tumbler, four polishing grits, a sifter, jewelry settings, a full-color 8 page learning guide and nine types of REAL rough gemstones
  • EASY TO USE for Rock Hounds of all ages and skill levels; plug it in and polishing begins
  • 100% SATISFACTION GUARANTEED - For 129 years, National Geographic has been committed to providing fun and fascinating educational opportunities for children and stands behind this Rock Tumbler with a two-year warranty

Discover with Dr. Cool Hobby Rock Tumbler

Discover with Dr. Cool Hobby Rock Tumbler
  • COMPLETE ROCK TUMBLING KIT - Includes tumbler and barrel, half pound of gemstones (9 different types), polishing grit (4 grades), jewelry fastenings, learning guide, and instructions
  • DURABLE QUALITY - Backed by our 2-year warranty, this metal base and high-powered motor give you a workhorse machine that will last for years
  • NOISE-REDUCING BARREL - Features a noise-reducing rubber barrel with stainless steel lid that is both leak-proof and much quieter than plastic barrels
  • SET IT AND FORGET IT - This easy-to-use tumbler has a programmable timer, giving you bigger results with less energy while never over-tumbling your rocks
  • 100% SATISFACTION GUARANTEE - Includes 2-year warranty. Join the millions of parents who have chosen our award-winning science toys

NSI/Smithsonian 49005 Rock Tumbler

NSI/Smithsonian 49005 Rock Tumbler
  • Tumble Rough Rocks Into Polished Stones
  • Mechanical Tumbling Action
  • Make Necklaces
  • Charms
  • Keychains
  • Includes 35" X 23" Color Poster with Instructions

NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – Best Budget Rock Tumbler

NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit
  • Gemstones of nine varieties: tiger's eye, amethyst, Aventurine, rose quartz, red jasper, agate, Sodalite, Dalmatian jasper, hematite. (1lb in total)
  • Four grades of grit: Coarse, medium, fine, polish. Transform your stones from rough rocks to dazzling gemstones!
  • Jewelry fastenings: 1 necklace, 1 set of earrings, 1 keychain, 1 ring. Create custom jewelry from your newly polished gemstones!
  • Learning guide: our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts
  • Respected quality - NATIONAL GEOGRAPHIC is proud to provide only the highest quality toys and all our kits are backed by our 100% satisfaction guarantee

NATIONAL GEOGRAPHIC Rock Tumbler Refill

NATIONAL GEOGRAPHIC Rock Tumbler Refill
  • HIGH QUALITY - This kit comes with enough silicon carbide grit to complete approximately 8-10 lbs of rocks.
  • 4 COURSES OF GRIT - Take your stones from rough material to polished gems over a 4-step tumbling process
  • COMPATIBLE WITH ALL TUMBLERS - Use this grit for tumbling rocks in any brand of rock tumbler. Lortone, Thumler, National Geographic, Elenco, Smithsonian and more!
  • POLISH ROCKS AND MORE - including quartz, jasper, tiger's eye, glass and more!
  • RECOMMENDED USE - We recommend approximately 2 tablespoons of grit per pound of rocks.

Lortone 33B Rotary Rock Tumbler – Premium Pick

Lortone 33B Rotary Rock Tumbler
  • Dimensions 6. 25L x 16W inches
  • Double-barrel rock tumbler
  • 2 molded-rubber barrels
  • 6 lb. Total capacity
  • Polishes stones, jewels, glass and beads

NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit

NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit
  • Gemstones of nine varieties: tiger's eye, amethyst, Aventurine, rose quartz, red jasper, agate, Sodalite, Dalmatian jasper, hematite. (3lb in total)
  • Four grades of grit: Coarse, medium, fine, polish. Transform your stones from rough rocks to dazzling gemstones!
  • Jewelry fastenings: 1 necklace, 1 set of earrings, 1 keychain, 1 ring. Create custom jewelry from your newly polished gemstones!
  • Learning guide: our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts
  • Respected quality - National Geographic is proud to provide only the highest quality toys and all our kits are backed by our 100% satisfaction guarantee

Starter Rock Tumbler Kit for Kids- Includes Rough Gemstones

Starter Rock Tumbler Kit for Kids- Includes Rough Gemstones
  • Fast - our unique design means a faster gemstone polishing experience. Polish beautiful stones in half the time
  • Complete kit - everything The young rock Hound needs including rock tumbler, power chord, 3 types of unpolished gemstones, polishing powder, and jewelry settings
  • No leak - our rock tumbler securely fastens and does not leak like so many others
  • Easy to use - All ages and skill levels can get started quickly and easily
  • 100% satisfaction - we stand behind all of our rock tumblers with a manufacturer's

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