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Top Rock Tumblers

Last Updated: 07/15/2018

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  #1

National Geographic Hobby Rock Tumbler Kit

Model: NGHOBBYTUMBLER   |    Mpn: NGHOBBYTUMBLER   |    Ean: 0816448020421   |    PartNumber: NGHOBBYTUMBLER   |   Asin: B01LQCIL88

Great way to start a rock collection!
Learn about the exciting hobby of rock tumbling with National Geographic. This set includes all the accessories you ll need to start polishing dazzling gems. Rock tumbling is tons of fun and a great way to start an extraordinary rock collection. Kids can use the included jewelry fastening to create beautiful homemade jewelry!

Contents and Features:
High-quality tumbling machine with powerful motor that will last for years
Automatic shutoff timer so you can set it and forget it
Noise reducing leak-proof barrel with stainless steel lid
Half pound of gemstones from around the world (9 types) and four grades of grit
Jewelry fastenings so you can create your own unique jewelry
Full-color information guide with cool facts about each of the gemstones included
Easy-to-follow rock tumbling instructions
2-year manufacturer warranty

Rock tumbling is a fun activity for children of all ages and promotes an interest in geology and science. Introduce your kid to science the fun way! Join National Geographic as we inspire future generations by showing them the wonders of the natural world.

National Geographic Toys is proud to provide a 100% satisfaction guarantee with all our products so that you can buy with confidence.

About the National Geographic Society
With a mission to inspire people to care about the planet, the 126-year-old National Geographic Society is one of the world s largest nonprofit scientific and educational organizations.

National Geographic s net proceeds support vital exploration, conservation, research, and education programs.

Features

  • Everything you need -tumbling machine, 9 types of rough gemstones (0.5 lb), four polishing grits, jewelry fastenings, educational guide, & instructions
  • Built to last - this high-quality metal tumbler has a powerful motor, noise reducing leak-proof barrel and comes backed by a 2-Year Warranty.
  • Perfect for beginners - easy to operate! features an automatic shutoff timer so you can get bigger results and save energy
  • Learn and discover - learn about all 9 of the gems included and then explore your own backyard for additional rocks to polish with your tumbler
  • 100% satisfaction guaranteed - with National Geographic 100% satisfaction guarantee and a 2-Year Warranty you can be sure you're giving a quality gift
  • See more on Amazon...

Brand: National Geographic   |   Manufacturer: Discover with Dr. Cool -- Dropship

Item Dimensions: 9.25 x 8 x 10.75 inches (23.5 x 20.3 x 27.3 cm)   |   Package Dimensions: 8 x 10.3 x 12.3 inches (20.3 x 26.2 x 31.2 cm)

First Available: 2017-08-07

Amazon Price: $69.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price: $74.99

Warranty: 1 year warranty against manufacturer defects

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  #2

National Geographic Grit Refill for Rock Tumbler - Works with, Lortone, Thumler and more

Model: NGBULKGRIT   |    Mpn: NGBULKGRIT   |    Ean: 0816448020636   |    PartNumber: NGBULKGRIT   |   Asin: B01MRKI4W0

This grit is perfect for use with rock tumblers of any brand! take your stones from rough rocks to polished gemstones in just 4 easy tumbling step using National Geographic grit refill (rock tumbler required and sold separately). this product contains 4 stages of grit in easily resealable containers - enough for about 8-10 pounds of rocks. Feel free to contact National Geographic toys on Amazon if you have any addition questions and we'll be happy to help.

Features

  • 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.
  • See more on Amazon...

Brand: National Geographic   |   Manufacturer: Discover with Dr. Cool -- Dropship

Item Dimensions: 5.3 x 4.2 x 5.3 inches (13.5 x 10.7 x 13.5 cm)   |   Package Dimensions: 5.43 x 5.51 x 5.59 inches (13.8 x 14.0 x 14.2 cm)

First Available: 2017-08-09

Amazon Price: $29.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price: $23.99

Warranty: No Warranty

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  #3

Polly Plastics Rock Tumbler Tumbling Media Grit Kit in Heavy Duty Resealable Bags - No Filler Material

Model: 683405246978   |    Mpn: 683405246978   |    Ean: 0683405246978   |    PartNumber: 683405246978   |   Asin: B075MY9P8Z

Complete Rock Tumbler Polishing Kit

Polly Plastics Rock Tumbler Grit Kit contains all the material you need for polishing beautiful stones. The 4 Step Kit contains: 1 lb. 60 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide, Grit, lb. 500 Fine Silicone Carbide and lb. 1200 Aluminum Oxide Polish. Polly Plastics Filler Plastic or Ceramic Cylinders can be purchased separately. Enough for one use in 15 lb. tumbler or five 3 lb. tumbles. For use in all Rotary and Vibratory Tumblers. Made in the USA with Premium Packaging

Most rock tumbler grit comes packaged in cheap plastic bags that easily tear and spill. We use thick, re-sealable bags that won't break and cause a mess. Just zip up what's left for later. Complete Instruction Included

We've included complete instructions so even beginners will be able to be successful tumblers.

Start tumbling! Order your Polly Plastics Rock Tumbling Grit Kit today. Your satisfaction is our top priority so we offer a money back guarantee on all our products, no questions asked. WARNING: Choking Hazard-small parts. Keep out of reach of children.

Features

  • COMPLETE KIT - 4 Step grit pack for use in 15 lb. tumbler or five 3 lb. tumbles.
  • CONTAINS - 1 lb. 60 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide, Grit, lb. 500 Fine Silicone Carbide, lb. 1200 Aluminum Oxide Polish. Polly Plastics filler plastic or ceramic cylinders can be purchased separately.
  • SUPERIOR PACKAGING - Packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused product for later.
  • MADE IN THE USA - Premium materials.
  • BEGINNER FRIENDLY - Complete instructions included. 100% satisfaction guarantee on all our products.
  • See more on Amazon...

Brand: Polly Plastics   |   Manufacturer: Polly Plastics

Item Dimensions: 2 x 7 x 7 inches (5.1 x 17.8 x 17.8 cm)   |   Package Dimensions: 1.6 x 6 x 6.5 inches (4.1 x 15.2 x 16.5 cm)

Amazon Price: $22.95 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price:

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  #4

National Geographic Professional Rock Tumbler (Improved Quality Sept. 2016)

Model: NGPROTUMBLER   |    Mpn: NGPROTUMBLER   |    Ean: 0851456006180   |    PartNumber: NGPROTUMBLER   |   Asin: B013PWFKN6

BEST IN ITS CLASS
This is the perfect rock tumbler for both beginners and advanced hobbyists! This top-of-the-line rock tumbler from National Geographic includes many unique features that will give you faster polishing times and better results. This set includes everything you need to get started, including 1lb of rough gemstones to polish for your rock collection. You can even create beautiful homemade jewelry with the fastenings included in the kit.

Contents and Features:
Automatic shutoff timer (set it, and forget it, and never over-tumble your stones again)
Speed Control (crank up the speed for faster tumbling times, or slow it down for better polishing results)
Powerful motor that will last for years!
Leak-proof high-impact barrel design with stainless steel cover
Noise reducing design
1 lb of assorted gemstones (9 different types) and four types of grit
Jewelry fastenings so you can create your own unique jewelry
Full-color information guide and easy-to-follow instructions
2 year manufacturer warranty

Rock tumbling is a fun activity for children of all ages and promotes a healthy interest geology and science. Introduce your kid to science the fun way, and join National Geographic as we inspire future generations of rock hounds!

National Geographic Toys is proud to provide a 100% satisfaction guarantee with all our products so that you can buy with confidence.

About the National Geographic Society
With a mission to inspire people to care about the planet, the 126-year-old National Geographic Society is one of the world s largest nonprofit scientific and educational organizations.

National Geographic s net proceeds support vital exploration, conservation, research, and education programs.

Features

  • CREATE STUNNING GEMS - Transform ordinary rocks into beautifully polished gemstones with this professional rock tumbling machine from National Geographic
  • A COMPLETE HOBBY KIT - Includes our Pro Series Tumbler, 1lb of rough gemstones, four polishing grits, jewelry fastenings, information guide, and instructions
  • BUILT TO LAST - This powerhouse machine will last for years and features a 2lb leak-proof rubber barrel which makes less noise than other tumblers
  • PROFESSIONAL FEATURES - Includes a speed control and shutoff timer for faster tumbling times and better polishing results
  • RESPECTED QUALITY - This premium tumbler comes with National Geographic's 100% satisfaction guarantee and a 2-year warranty
  • See more on Amazon...

Brand: National Geographic   |   Manufacturer: Discover with Dr. Cool

Item Dimensions: 2.25 x 9.25 x 6 inches (5.7 x 23.5 x 15.2 cm)   |   Package Dimensions: 6.6 x 10.8 x 12.5 inches (16.8 x 27.4 x 31.8 cm)

First Available: 2011-01-01

Amazon Price: $119.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price: $119.99

Warranty: 30 day warranty against manufacturer defects

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  #5

National Geographic Rough Gemstone Refill Kit for Rock Tumbler

Model: NGGEMREFILL   |    Mpn: NGGEMREFILL   |    Ean: 0851456006142   |    PartNumber: NGGEMREFILL   |   Asin: B017L46G9G

Stock up with National Geographic s raw gemstone refill kit this gemstone refill kit includes: 9 types of raw gemstones (1 lb in total), 4 courses of polishing grit, 6 jewelry fastenings, 1 learning guide, and our 100% satisfaction . National Geographic toys is proud to provide a 100% satisfaction with all our products so that you can buy with confidence. About the National Geographic society with a mission to inspire people to care about the Planet, the 126-year-old National Geographic society is one of the world's largest nonprofit scientific and educational organizations. National Geographic net proceeds support vital exploration, conservation, research, and education programs.

Features

  • 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: 2 Necklaces, 2 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
  • See more on Amazon...

Brand: National Geographic   |   Manufacturer: Discover with Dr. Cool -- Dropship

Item Dimensions: 3 x 3 x 8 inches (7.6 x 7.6 x 20.3 cm)   |   Package Dimensions: 3.07 x 3.15 x 8.03 inches (7.8 x 8.0 x 20.4 cm)

First Available: 2017-11-14

Amazon Price: $7.00 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price: $14.99

Warranty: Satisfaction Guaranteed

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  #6

National Geographic Starter Rock Tumbler Kit

Model: NGTUMBLER2   |    Mpn: NGTUMBLER2   |    Ean: 0085422266029   |    PartNumber: NGTUMBLER2   |   Asin: B01I56RV0C

Great way to start a rock collection!
Learn about the exciting hobby of rock tumbling with National Geographic. This set has a new and improved tumbling barrel and includes all the accessories you ll need to start polishing dazzling gems. Rock tumbling is tons of fun and a great way to start an extraordinary rock collection. Use the included jewelry fastenings to create beautiful homemade jewelry!

Contents and Features:
High-quality tumbling machine with powerful motor that will last for years
Upgraded leak-proof barrel with silicon lining
pound of stones from around the world (9 types) and four levels of grit
Jewelry fastenings so you can create your own unique jewelry
Full-color information guide with cool facts about each of the gemstones included
Easy-to-follow rock tumbling instructions

Rock tumbling is a fun activity for children of all ages and promotes an interest in geology and science. Introduce your kid to science the fun way, and join National Geographic as we inspire future generations by showing them the wonders of the natural world.

National Geographic Toys is proud to provide a 100% satisfaction guarantee with all our products so that you can buy with confidence.

About the National Geographic Society
With a mission to inspire people to care about the planet, the 126-year-old National Geographic Society is one of the world s largest nonprofit scientific and educational organizations.

National Geographic s net proceeds support vital exploration, conservation, research, and education programs.

Features

  • 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
  • See more on Amazon...

Brand: National Geographic   |   Manufacturer: Discover with Dr. Cool

Item Dimensions: 9 x 7.25 x 11 inches (22.9 x 18.4 x 27.9 cm)   |   Package Dimensions: 7.5 x 9 x 11.5 inches (19.1 x 22.9 x 29.2 cm)

First Available: 2017-10-13

Amazon Price: $49.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price: $49.99

Warranty: 30 day warranty against manufacturer defects

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  #7

Polly Plastics Rock Tumbler Tumbling Media Grit Kit & Plastic Filler in Heavy Duty Resealable Bags

Model: 683405247067   |    Mpn: 683405247067   |    Ean: 0683405247067   |    PartNumber: 683405247067   |   Asin: B01MTEB7SA

Complete Rock Tumbler Polishing Kit

Polly Plastics Rock Tumbler Grit Kit contains all the material you need for polishing beautiful stones. The 4 Step Kit contains: 1 lb. 60 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide, Grit, lb. 500 Fine Silicone Carbide and lb. 1200 Aluminum Oxide Polish. Also included is 1 lb. of our premium plastic pellets for protecting and cushioning fragile stones while tumbling. Enough for one use in 15 lb. tumbler or five 3 lb. tumbles. For use in all Rotary and Vibratory Tumblers. Made in the USA with Premium Packaging

Most rock tumbler grit and plastic comes packaged in cheap plastic bags that easily tear and spill. We use thick, re-sealable bags that won't break and cause a mess. Just zip up what's left for later. Complete Instruction Included

We've included complete instructions so even beginners will be able to be successful tumblers.

Start tumbling! Order your Polly Plastics Rock Tumbling Grit Kit today. Your satisfaction is our top priority so we offer a money back guarantee on all our products, no questions asked. WARNING: Choking Hazard-small parts. Keep out of reach of children.

Features

  • COMPLETE KIT - 4 Step grit pack for use in 15 lb. tumbler or five 3 lb. tumbles.
  • CONTAINS - 1 lb. 60 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide, Grit, lb. 500 Fine Silicone Carbide, lb. 1200 Aluminum Oxide Polish and 1 lb. plastic cushioning pellets
  • SUPERIOR PACKAGING - Packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused product for later.
  • MADE IN THE USA - Premium materials.
  • BEGINNER FRIENDLY - Complete instructions included. 100% satisfaction guarantee on all our products.
  • See more on Amazon...

Brand: Polly Plastics   |   Manufacturer: Polly Plastics

Item Dimensions: 3.5 x 10 x 12 inches (8.9 x 25.4 x 30.5 cm)   |   Package Dimensions: 3.5 x 6.7 x 7.8 inches (8.9 x 17.0 x 19.8 cm)

Amazon Price: $29.95 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price:

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  #8

Polly Plastics Rock Tumbler Tumbling Media Grit Kit & Ceramic Filler in Heavy Duty Resealable Bags

Model: 683405246985   |    Mpn: 683405246985   |    Ean: 0683405246985   |    PartNumber: 683405246985   |   Asin: B075MZ36FF

Complete Rock Tumbler Polishing Kit

Polly Plastics Rock Tumbler Grit Kit contains all the material you need for polishing beautiful stones. The 4 Step Kit contains: 1 lb. 60 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide, Grit, lb. 500 Fine Silicone Carbide and lb. 1200 Aluminum Oxide Polish. Also included is 1.5 lb. of our premium porcelain ceramic cylinders for protecting and cushioning fragile stones while tumbling. An advantage of ceramic over plastic fill is that porcelain ceramic rinses clean of grit so you can use the same batch of ceramic through all the stages. Just rinse off between stages, along with the rocks. Enough for one use in 15 lb. tumbler or five 3 lb. tumbles. For use in all Rotary and Vibratory Tumblers. Ceramic is recommended over plastic fill for vibratory tumblers. Made in the USA with Premium Packaging

Most rock tumbler grit and plastic comes packaged in cheap plastic bags that easily tear and spill. We use thick, re-sealable bags that won't break and cause a mess. Just zip up what's left for later. Complete Instruction Included

We've included complete instructions so even beginners will be able to be successful tumblers.

Start tumbling! Order your Polly Plastics Rock Tumbling Grit Kit today. Your satisfaction is our top priority so we offer a money back guarantee on all our products, no questions asked. WARNING: Choking Hazard-small parts. Keep out of reach of children.

Features

  • COMPLETE KIT - 4 Step grit pack and ceramic filler for use in 15 lb. tumbler or five 3 lb. tumbles.
  • CONTAINS - 1 lb. 60 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide, Grit, lb. 500 Fine Silicone Carbide, lb. 1200 Aluminum Oxide Polish and 1.5 lbs. porcelain ceramic filler cylinders. No need to keep ceramic separate for each stage - rinse and use the same batch through all the tumbling stages.
  • SUPERIOR PACKAGING - Packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused product for later.
  • MADE IN THE USA - Premium materials.
  • BEGINNER FRIENDLY - Complete instructions included. 100% satisfaction guarantee on all our products.
  • See more on Amazon...

Brand: Polly Plastics   |   Manufacturer: Polly Plastics

Item Dimensions: 3.5 x 8 x 8 inches (8.9 x 20.3 x 20.3 cm)   |   Package Dimensions: 2.6 x 7.4 x 8.6 inches (6.6 x 18.8 x 21.8 cm)

Amazon Price: $29.95 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price:

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  #9

Polly Plastics Ceramic Rock Tumbling Small Media. 1.5 Lbs Rock Tumbler Filler Small Cylinders in Heavy Duty Resealable Bag

Model: 683405246992   |    Mpn: 683405246992   |    Ean: 0683405246992   |    PartNumber: 683405246992   |   Asin: B075MWVBQ1

Our non-abrasive porcelain ceramic tumbling media is perfect for protecting and cushioning fragile stones while tumbling. Also, use to fill your barrel to the recommended level, carry grit & polish, improve tumbling action and quiet the tumbling process. Recommended over plastic filler media for vibratory tumblers. Since porcelain ceramic rinses clean of grit, you can use the same batch of ceramic through all the stages. Just rinse off between stages, along with the rocks. This large 1.5 lb. bag allows plenty of cylinders for multiple tumbler loads. Do not use fresh cylinders when polish tumbling in Stages 3 and 4. Run the cylinders in the tumbler with water for a few days to smooth off the edges. Preferably, use the fresh cylinders as fill for Stages 1 & 2 so they will have lost their edges by Stage 3. Most tumbling media comes packaged in cheap plastic bags that easily tear and spill. We use a thick, re-sealable bag that won't break and cause a mess. If you have extra cylinders - just zip up the bag and use it for a later project. Polly Plastics sells premium porcelain ceramic. 100% satisfaction guaranteed. WARNING: Choking Hazard-small parts. Not for children under 3 years.

Features

  • 1.5 Lbs. Non-Abrasive, Porcelain Ceramic Small Tumbling Media. 3/16" dia. X 3/8" long, 22 degree angle cut cylinders.
  • Perfect for protecting stones or filling while rock tumbling. Cushions, quiets and improves tumbling action. Recommended over plastic media for vibratory tumblers.
  • No need to keep separate for each stage - rinse and use the same batch through all the tumbling stages. Non-toxic, non-static and non-residue pellets are dryable and easy to reuse.
  • Packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused pellets for later.
  • PREMIUM porcelain ceramic
  • See more on Amazon...

Brand: Polly Plastics   |   Manufacturer: Polly Plastics

Item Dimensions: 1.5 x 5 x 7.5 inches (3.8 x 12.7 x 19.1 cm)   |   Package Dimensions: 1.69 x 4.61 x 5.98 inches (4.3 x 11.7 x 15.2 cm)

Amazon Price: $15.95 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price:

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  #10

Rock Tumbler Grit for 3 Pound Tumbler

 Ean: 0711081291958   |    PartNumber: Grit 3   |   Asin: B01DUXJAAE

Complete Kit - 4 Premeasured Packs, Includes Easy to Follow Instructions For Use In All 3lb Tumblers

Features

  • Complete Kit - 4 Pre-measured Packs, Includes Easy to Follow Instructions
  • 3 ounces 60/90 Coarse Silicon Carbide Grit
  • 3 ounces 120/220 Medium Silicon Carbide
  • 1.5 ounces 500 Fine (pre polish) Silicon Carbide Grit
  • 1.5 ounces 1200 Aluminum Oxide Polish
  • See more on Amazon...

Brand: Professional Grade Rock Polishing Grit   |   Manufacturer: RTumbler, LLC

Item Dimensions: 2 x 3 x 5.5 inches (5.1 x 7.6 x 14.0 cm)   |   Package Dimensions: 1.1 x 4.3 x 5 inches (2.8 x 10.9 x 12.7 cm)

Amazon Price: $12.49 | as of 07/15/2018(12:00am pst)
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  #11

Discover with Dr. Cool Hobby Rock Tumbler Easily Transform Rocks into Gemstones

Model: HOBBYTUMBLER   |    Mpn: HOBBYTUMBLER   |    Ean: 0816448020292   |    PartNumber: HOBBYTUMBLER   |   Asin: B01LQCIKRU

Imagine taking dull, ordinary rocks and magically transforming them into sparkling gems now you can!
With the Hobby Rock Tumbler from Discover with Dr. Cool, making beautiful gemstones is easy! Just add the polishing grit, water, and unpolished stones into the tumbling machine and set the timer. The machine will polish your stones into beautiful, shining gems! There is no better way for boys and girls to learn about geology. This science kit will provide hours of fascinating science fun and comes with everything you need to start exploring the exciting hobby of rock tumbling.

This Science Kit includes:
High-quality tumbling machine
Noise-reducing rubber barrel with stainless steel lid
Half pound of semi-precious stones including amethyst, quartz, tiger s eye, jasper, agate, and more
4 grades of polishing grit
Jewelry fastenings
Adventure guide with educational information written by teachers
Activity booklet with 10 puzzles and games to solve
Easy-to-follow tumbling instructions
2-year manufacturer warranty

With the included jewelry fastenings, kids can even make their very own custom jewelry. Just mount the polished gems into the fastenings and they re ready to wear!

A Brand You Can Trust
Discover with Dr. Cool is a name parents trust. Founded by a teacher and a life-long rock hound back in 2009, Dr. Cool has won over 100 awards for the play value, educational content, and overall quality of their toys. These awards include:
10 Best Toys for Kids - Dr. Toy
Kid's Product of the Year - Creative Child Magazine
Award of Excellence - Parent Tested, Parent Approve
Best of the Year Family Review Center
Brain Toy Award Academic s Choice
Brain Child Toy Award Tillywig Toy
Teachers Choice Award - Learning Magazine

All Discover with Dr. Cool products are backed with a 100% satisfaction guarantee, so you know you re giving a quality gift that any child will love! Join the millions of parents who have chosen Dr. Cool s science kits for their kids.

Science doesn t get any cooler than this!

Features

  • 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
  • See more on Amazon...

Brand: Discover with Dr. Cool   |   Manufacturer: Discover with Dr. Cool

Item Dimensions: 9.5 x 8 x 10.75 inches (24.1 x 20.3 x 27.3 cm)   |   Package Dimensions: 7.95 x 9.37 x 11.34 inches (20.2 x 23.8 x 28.8 cm)

Amazon Price: $69.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price: $74.99

Warranty: No Warranty

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  #12

NSI Rock Tumbler Classic

Model: 635   |    Mpn: 635   |    Ean: 0042409263549   |    PartNumber: 635   |   Asin: B00000ISUU

Dimensions: 8.5L x 4.25D x 45H inches. Transforms semi-precious rocks into gorgeously lustrous gemstones. Recommended for ages 12 and up. Per-minute revolutions: 50-80. Four grit cycles for immaculate polishing. Includes: rock, tumbler, polish, gems, jewelry settings. Start with agate, jasper, amethyst, and more (included). Weight: 3.5 pounds.

It may be a grind to wait nearly 30 days to create polished rock jewelry with the Rolling Stones Rock Tumbler. But, as the makers write, "you are grinding in days what it takes nature thousands of years to do in a stream, river, or ocean." So, find a clean, remote area with a properly wired outlet where the constant tumbling won't disturb others (and where curious little hands won't wreak havoc), and start rolling. The first step involves assembling and lubricating the tumbler itself. Once the two-cup, plastic barrel rolls easily atop its 10-inch-long and 6-inch-high plastic base, it's time to open the small bag of gritty stones that comes with the kit. Constant maintenance and much patience will reward the owner with shiny stones in about one month. A small sampling of jewelry settings and findings is provided, along with order forms for gold-tinted accessories. -- Liane Thomas

Features

  • Change rough stones into beautiful, high luster gemstones
  • UL listed heavy duty rock tumbler
  • Includes: Rock Tumbler machine, rough semi precious stones, grit, polish, jewelry settings, and glue
  • Detailsed instructions included
  • Ages 10 and up
  • See more on Amazon...

Brand: Classic Crafts   |   Manufacturer: Merlin's Mystical Magic Sets

Item Dimensions: 13 x 5 x 13 inches (33.0 x 12.7 x 33.0 cm)   |   Package Dimensions: 4.9 x 12.9 x 12.9 inches (12.4 x 32.8 x 32.8 cm)

Amazon Price: $36.86 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price: $49.99 | Used Price: $32.07

Warranty: 1 year from purchase

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  #13

Heavy Duty Rotary Tumbler with 15 lb Capacity

Model: THU140   |    Mpn: ANTW2   |    Ean: 0787551894721   |    PartNumber: ANTW2   |   Asin: B000BUXY0W

Professional Grade Rotary Tumbler Our most professional quality rotary tumbler features a 15 lb. capacity steel hexagon barrel with removable rubber liner. Used for a variety of tumbling and mixing operations: polish rocks, brass, and other metals. 115V heavy duty motor - fan-cooled with overload protection. The vendor offers a 5 year guarantee on barrel and liner. Extensively used by serious hobbyists, laboratories, schools, and industry, this model is the standard of hard-loading experts.

Features

  • Professional Grade Rotary Tumbler
  • OUR most professional quality rotary tumbler features a 15 lb. capacity steel hexagon barrel with removable rubber liner.
  • Used for a variety of tumbling and mixing operations: polish rocks, brass, and other metals. 115V heavy duty motor - fan-cooled with overload protection.
  • The vendor offers a 5 year guarantee on barrel and liner.
  • Extensively used by serious hobbyists, laboratories, schools, and industry, this model is the standard of hard-loading experts.
  • See more on Amazon...

Brand: Tru-square Metal Products   |   Manufacturer: TRU-SQUARE METAL PRODUCTS

Item Dimensions: 11.5 x 12.9 x 13.4 inches (29.2 x 32.8 x 34.0 cm)   |   Package Dimensions: 11.5 x 12.76 x 13.5 inches (29.2 x 32.4 x 34.3 cm)

Amazon Price: $225.00 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
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  #14

Polypropylene Plastic Poly Pellets Rock Tumbling Media. 2 Lbs. Polly Plastics Rock Tumbler Filler Beads in Heavy Duty Resealable Bag.

Model: 683405247555   |    Mpn: 683405247555   |    Ean: 0683405247555   |    PartNumber: 683405247555   |   Asin: B00VCQ8SW8

Our clear plastic pellets are perfect for protecting and cushioning fragile stones while tumbling. Also, use to fill your barrel to the recommended level, improve tumbling action and quiet the tumbling process.

Be sure to use a fresh batch of pellets with every grit size or polish change since the pellets can never be perfectly cleaned once embedded with a particular grit size. This large 2 lb. bag allows plenty of pellets for each grit level and plenty for multiple tumbler loads.

Most pellets come packaged in cheap plastic bags that easily tear and spill. We use a thick, re-sealable bag that won't break and cause a mess. If you have extra pellets - just zip up the bag and use it for a later project.

Polly Plastics sells USA premium pellets that haven't been bought as scrap, imported or re-processed from used plastic. 100% satisfaction guaranteed.

WARNING: Choking Hazard-small parts. Not for children under 3 years.

Features

  • TWO LBS. Clear poly pellets. Perfect for protecting stones or filling while rock tumbling. Cushions, quiets and improves tumbling action.
  • Packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused pellets for later.
  • PREMIUM virgin polypropylene made in the USA.
  • Non-toxic, non-static and non-residue pellets are dryable and easy to reuse - float to the top for easy cleaning.
  • See more on Amazon...

Brand: Polly Plastics   |   Manufacturer: Polly Plastics

Item Dimensions: 3 x 8 x 8 inches (7.6 x 20.3 x 20.3 cm)   |   Package Dimensions: 2.7 x 5.8 x 6 inches (6.9 x 14.7 x 15.2 cm)

Amazon Price: $17.95 | as of 07/15/2018(12:00am pst)
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  #15

Exploring MInds 15 LB Speed Adjusted Heavy Duty Rock Tumbler

 Ean: 0078776134717   |    PartNumber: Green 15lb Rock Tumbler   |   Asin: B07DVMCFT9

15 LB Capacity Speed Adjusted Rock Tumbler - Detailed Instructions Included

The motion in the barrel of the Tumbler simulates the natural action of flowing water or ocean waves. Beaches and riverbeds contain rocks and pebbles smoothed by water and the abrasive sand it carries. As rocks grind upon one another with constant water and sand in the mix, they begin to round and smooth. Although this is a constant process, it does not however, naturally polish the rocks.

The Tumbler uses an abrasive media instead of sand (not included). It is graded by grain size, from fine powder sized grains, up to large sized grains. By changing (usually by weekly intervals) the grain size, rotating from coarse, medium, to fine, the rock or gemstone is smoothed much more quickly than the natural process

To polish using a Tumbler, add a metallic oxide compound (not included). The complete process for a gemstone or rock to go from rough to smooth, polished finish, usually takes 4-6 weeks.

Features

  • Detailed Instructions Included
  • 15 LB Capacity Speed Adjusted Rock Tumbler
  • Barrel Type Rubber (allows for quieter operations)
  • Motor 100-240 Volt 50/60 Hz
  • Used for a variety of tumbling and mixing operations: polish rocks, brass, and other metals.
  • See more on Amazon...

Brand: Exploring Minds   |   Manufacturer: Exploring Minds

Amazon Price: $99.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
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  #16

MJR Tumblers Rock Grit Kit for 3 lb Tumbler

 PartNumber: MJR3pgkp   |   Asin: B07DZ64NXL

Grit Kit for 3 pound Rock Tumblers

3 ounces of 60/90 Graded Silicon Carbide Grit (Step 1)
3 ounces of 120/220 Graded Silicon Carbide Grit (Step 2)
1.5 ounces of 500/600 Graded Silicon Carbide Grit (Step 3)
1.5 ounces of 1200 Aluminum Oxide Polish (Step 4)
3 ounces of Plastic Pellets
Comes with FREE Polishing Instructions

We use a superior blend of Green/Black Silicon Carbide for our first stage. Green Silicon Carbide is of higher purity than Black Silicon Carbide, therefore it will work faster than Black Silicon Carbide because it's harder and stays sharper longer.

MJR Tumblers offers a large selection of heavy duty tumblers, a full range of silicon carbide grit (50, 80, 60/90, 500, 600, 500/600 and 1500) and aluminum oxide (400/600 and 1200). These can be purchased individually in any weight denomination that fits your needs or we have pre-made kits for your specific size tumbler. We have kits available with or without plastic pellets.

Features

  • 3 ounces of 60/90 Graded Silicon Carbide Grit (Step 1)
  • 3 ounces of 120/220 Graded Silicon Carbide Grit (Step 2)
  • 1.5 ounces of 500/600 Graded Silicon Carbide Grit (Step 3)
  • 1.5 ounces of 1200 Aluminum Oxide Polish (Step 4)
  • 3 ounces of Plastic Pellets
  • See more on Amazon...

Brand: MJR Tumblers   |   Manufacturer: MJR Tumblers

Amazon Price: $8.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 1-2 business days
List Price:

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  #17

MJR Tumblers 4 lb Silicon Carbide 600 Rock Grit, Pre-Polish

 PartNumber: MJR4p600   |   Asin: B07F9JWFZY

4 Pounds of 600 Grit Silicon Carbide (step 3), Pre-Polish

Comes with FREE Polishing Instructions

We have a large selection of heavy duty tumblers. We offer a full range of silicon carbide grit (50, 80, 60/90, 500, 600, 500/600 and 1500) and aluminum oxide (400/600 and 1200). These can be purchased individually in any weight denomination that fits your needs or we have pre-made kits for your specific size tumbler. We have kits available with or without plastic pellets.

Features

  • 4 pounds of 600 Graded Silicon Carbide Grit (Step 3) Pre-Polish
  • Compatible with ANY BRAND OF TUMBLER
  • Comes with FREE Polishing Instructions
  • See more on Amazon...

Brand: MJR Tumblers   |   Manufacturer: MJR Tumblers

Amazon Price: $29.16 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 1-2 business days
List Price:

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  #18

Exploring Minds 6 Pound Rotary Dual Drum Rock Tumbler

 Ean: 0078776134724   |    PartNumber: Green 6lb Rock Tumbler   |   Asin: B07DWGF87F

6 LB Capacity Speed Adjusted Rock Tumbler - Detailed Instructions Included. Dual 3 pound drums.

The motion in the barrel of the Tumbler simulates the natural action of flowing water or ocean waves. Beaches and riverbeds contain rocks and pebbles smoothed by water and the abrasive sand it carries. As rocks grind upon one another with constant water and sand in the mix, they begin to round and smooth. Although this is a constant process, it does not however, naturally polish the rocks.

The Tumbler uses an abrasive media instead of sand (not included). It is graded by grain size, from fine powder sized grains, up to large sized grains. By changing (usually by weekly intervals) the grain size, rotating from coarse, medium, to fine, the rock or gemstone is smoothed much more quickly than the natural process

To polish using a Tumbler, add a metallic oxide compound (not included). The complete process for a gemstone or rock to go from rough to smooth, polished finish, usually takes 4-6 weeks.

Features

  • 6 lb Dual Drum Rock Tumbler will transform ordinary rocks into beautifully polished gemstones with this professional rock tumbling machine
  • High quality tumbling machine with long lasting powerful motor
  • Capacity 6 Lbs. 3 Pounds per Drum
  • Barrel Type Rubber (allows for quieter operations)
  • Abrasive media is not included with the tumbler
  • See more on Amazon...

Brand: Exploring Minds   |   Manufacturer: Exploring Minds

Amazon Price: $62.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price:

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  #19

MJR Tumblers Rock Grit Kit for 3 lb Tumbler

 PartNumber: MJR3pgk   |   Asin: B07DZ54NQN

Grit Kit for 3 pound Rock Tumblers

3 ounces of 60/90 Graded Silicon Carbide Grit (Step 1)
3 ounces of 120/220 Graded Silicon Carbide Grit (Step 2)
1.5 ounces of 500/600 Graded Silicon Carbide Grit (Step 3)
1.5 ounces of 1200 Aluminum Oxide Polish (Step 4)
Comes with FREE Polishing Instructions.

We use a superior blend of Green/Black Silicon Carbide for our first stage. Green Silicon Carbide is of higher purity than Black Silicon Carbide, therefore it will work faster than Black Silicon Carbide because it's harder and stays sharper longer.

MJR Tumblers offers a large selection of heavy duty tumblers, a full range of silicon carbide grit (50, 80, 60/90, 500, 600, 500/600 and 1500) and aluminum oxide (400/600 and 1200). These can be purchased individually in any weight denomination that fits your needs or we have pre-made kits for your specific size tumbler. We have kits available with or without plastic pellets.

Features

  • 3 ounces of 60/90 Graded Silicon Carbide Grit (Step 1)
  • 3 ounces of 120/220 Graded Silicon Carbide Grit (Step 2)
  • 1.5 ounces of 500/600 Graded Silicon Carbide Grit (Step 3)
  • 1.5 ounces of 1200 Aluminum Oxide Polish (Step 4)
  • See more on Amazon...

Brand: MJR Tumblers   |   Manufacturer: MJR Tumblers

Amazon Price: $7.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 1-2 business days
List Price:

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  #20

Rockhound's 1st Choice Rock Tumbler Refill Grit Kit polishes up to 3 Lbs of Rocks-Use in Thumlers,Lortone,Dr.Cool, Nat'l Geo & Chicago

 Ean: 4903563174088   |    PartNumber: GK   |   Asin: B07CPD7DZV

Rockhound's 1st Choice 4-step Tumbler Refill Grit Kit-Tumble & polish up to 3 lbs of rocks! Perfect for All Rock Tumblers up to 3lbs capacity and the smaller beginner & 1/2 lb capacity Ones . Superior Grit -the same as what the pros use! FREE Tips on rough Gem stone selection & "Basic" rock tumbler instructions included. Helpful FREE Polishing & burnishing tips included!! also Refer to your Original rock tumbler manufacturer's original Instructions that came with your Rock Tumbler! WARNING!!! For hobbyists 12 years of age or older . Adult Supervision suggested. Eye protection recommended. Do Not Eat. Choking hazard. What you Get: This is the Highest Quality Grit Available on the Market Today-We Guarantee it!!! This 4-step Grit Kit Consists of: 3 oz coarse 60/90 black (SiC) silicon carbide 3 oz medium 120/220 black (SiC) silicon carbide 1.50 oz fine (pre polish)500 Aluminum Oxide grit. 1.50 oz polish 1200 white fused aluminum oxide 1.5 micron or finer !! WOW !! These Are "Before" & "After" Photographs of Our Actual Results Using This Grit Kit!! ! (Gemstones NOT Included In The Grit Kits-Shown For Illustrative Purposes Only)!! *NOTES: See our Actual photographs (above) of 8 oz Net African Golden Tiger Eye gemstones showing before and after tumbling using Our weight applicable grit kit. A 3 lb capacity Chicago tumbler used. Time elapsed: 39 days (24/7). Final Burnishing step: 6 days (24/7) Uses common Ivory bar soap. Both steps #4 (Polishing) and final burnishing done using plastic pellets (not included in our grit kit). All steps performed using typical & customary rock tumbling procedures ( included with all rock tumbler instructions and also easily found on the internet). Superior Quality Grits-The Same as what the Pros Use NOTE** No Jewelry findings or adhesives included.

Features

  • Made in the usa - pre measured for precise use in all 3 lb capacity rock tumblers
  • A great choice for all smaller or beginner kidz rock tumblers 1/2 lb capacity & larger (the smaller the tumbler the more charges you get!)
  • Your Rocks & Gems will Achieve a glass-like shine Polish- just like the pros!
  • This Kit works great in all sizes, varieties & formats of rock tumblers! (just adjust the quantity as needed)
  • Superior quality grits, informative tips & instructions, economically priced.
  • See more on Amazon...

Brand: Rockhound's First Choice   |   Manufacturer: Rockhound's First Choice

Package Dimensions: 0.63 x 3.78 x 5.87 inches (1.6 x 9.6 x 14.9 cm)

Amazon Price: $19.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
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  #21

Rock Tumbler Gem Refill Kit - Botswana Agate Rough, S. Africa, Bold Banding, 8 oz

 Ean: 4903563174118   |    PartNumber: BA   |   Asin: B07D5Z7NBZ

Botswana Agate from Botswanna, South Africa is a variety of banded Chalcedony, a mineral of the Quartz family. Agates are found all over the world, however this particular form of Agate is found exclusively in Botswana. Botswana Agate is a rare type of Silicate mineral. Silicate minerals form the largest family of minerals, including more than 25% of all known minerals and 40% of all common minerals. In addition to being a major part of the Earth's crust, Silicate minerals have also been found on the moon and in meteorites.All microcrystalline Quartz fall under the subcategory of Chalcedony, which is then further subdivided. One of these categories is Agate. Botswana Agate is found only in the southern African country from which it takes its name, and is famous for its natural pink and orange hues in addition to soft grey, blue and purple rings.Agates are typically mined from primary deposits that still have their original relationship with the host rock. Agates are usually ball or almond-shaped nodules ranging in size from a fraction of an inch to several yards in diameter.(These specimens average 1" to 1 1/2" in Dia) If the Agate fills the entire hollow space left by the gas bubble, it is called an Agate Almond. If a hollow remains in the center, it is called an Agate Geode. In the case of Botswana Agate, Agate Almonds are often found in secondary alluvial deposits, notably along the Bobonong River. These agates Takes an exceptional polish.This bag weighs 8 oz. (224 grams) and will contain an average of 6-8 large pieces.Each piece, depending upon it's weight will average about 1 1/2" diameter. Great refill for any beginner-novice tumblers, i.e., NSI, National Geographic, Dr. Cool, Smithsonian, Elenco & Pro Models Lortone, Chicago & Others. NOTE* This Bag DOES Not contain Grits, Findings, jewelry parts, or adhesives that may have been included with the original tumbler accessories. WARNING-Choking Hazard! Use Tumbling instructions from the tumbler manufacturer.

Features

  • This particular form of Agate is found exclusively in Botswana,Africa.
  • Botswana agate is famous for its natural pink and orange hues in addition to soft grey, blue and purple rings.
  • These agates Takes an exceptional polish.This bag weighs 8 oz. (224 grams) and will contain an average of 6-8 large pieces
  • Great refill for any beginner-novice tumblers
  • Refer to your Original Rock Tumblers instructions for tumbling information.
  • See more on Amazon...

Brand: Rockhound's First Choice Botswana Agate   |   Manufacturer: Rockhound's First Choice Botswana Agate

Package Dimensions: 1 x 4 x 6 inches (2.5 x 10.2 x 15.2 cm)

Amazon Price: $16.99 | as of 07/15/2018(12:00am pst)
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  #22

Rockhound's First Choice Nat'l Geo Belts Replacement Drive Belts for National Geographic Pro Rock Tumbler- 3 pack

 Ean: 4903563174101   |    PartNumber: NG   |   Asin: B07D5RS26F

These Made In The USA replacement National Geographic Pro Rock Tumbler Belts will equal or exceed Mfg standards. 15 Year shelf life.These High quality replacements are not Manufactured or approved by National Geographic but 100's of customers say that these equal or exceed the original belts at a fraction of the cost.

Features

  • Made in the USA - 15 Years rated Shelf Life.
  • Meets or Exceeds National Geographic Original Quality
  • Outer Diameter approx 3 3/8
  • Economical-Keep several extra nearby as spares.
  • See more on Amazon...

Brand: Rockhound's First Choice Nat'l Geo Belts   |   Manufacturer: Rockhound's First Choice

Package Dimensions: 1 x 4 x 6 inches (2.5 x 10.2 x 15.2 cm)

Amazon Price: $12.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
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  #23

MJR Tumblers 2 lb Silicon Carbide 120/220 Rock Grit Polish

 PartNumber: MJR2p120/220   |   Asin: B07F9CTPGT

2 Pounds of 120/220 Grit Silicon Carbide (step 2)
Comes with FREE Polishing Instructions

We have a large selection of heavy duty tumblers. We offer a full range of silicon carbide grit (50, 80, 60/90, 500, 600, 500/600 and 1500) and aluminum oxide (400/600 and 1200). These can be purchased individually in any weight denomination that fits your needs or we have pre-made kits for your specific size tumbler. We have kits available with or without plastic pellets.

Features

  • 2 pounds of 120/220 Graded Silicon Carbide Grit (Step 2)
  • Compatible with ANY BRAND OF TUMBLER
  • Comes with FREE Polishing Instructions
  • See more on Amazon...

Brand: MJR Tumblers   |   Manufacturer: MJR Tumblers

Amazon Price: $13.85 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 1-2 business days
List Price:

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  #24

Exploring Minds Rock Tumbler Tumbling Media 4 Piece Grit Pack Kit

 Ean: 0078776134731   |    PartNumber: 4GritPackCombo   |   Asin: B07DW9T7XP

Complete Grit Kit - 4 Step Grit Kit Packs. Use with 3 lb, 6 lb, or 15 lb tumbler
3 Total Pounds Included
Step 1 - 1 lb. 60 Coarse Silicon Carbide Grit

Step 2 - 1 lb. 180/220 Medium Silicon Carbide Grit

Step 3 - lb. 500 Fine Silicone Carbide

Step 4 - lb. 1200 Aluminum Oxide Polish.

Features

  • Complete Grit Kit - 4 Step Grit Kit Packs. Use with 3 lb, 6 lb, or 15 lb tumbler
  • Step 1 - 1 lb. 60 Coarse Silicon Carbide Grit, Step 2 - 1 lb. 180/220 Medium Silicon Carbide Grit, Step 3 - lb. 500 Fine Silicone Carbide, Step 4 - lb. 1200 Aluminum Oxide Polish.
  • Will work with any brand of rock tumbler.
  • High quality resealable packaging.
  • Exploring Minds makes high quality rock tumblers and materials. 3 Total pounds of material
  • See more on Amazon...

Brand: Exploring Minds   |   Manufacturer: Exploring Minds

Amazon Price: $21.99 | as of 07/15/2018(12:00am pst)
Availibility: Usually ships in 24 hours
List Price:

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