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SaleBestseller No. 1
EARTH'SCODE Rock Tumbler kit - Advanced Professional Tumbling Stone Polisher, STEM Science Kit with...
- [Create Unique Gemstones] - Rock Tumbler kit is a simple operation and a durable design that can help you easily polish and turn rough rocks into...
- [Durable Tumbler] - The Professional tumbler stone polisher runs on a powerful motor with a leak-resistant rubber barrel which makes it quieter than...
- [Easy to Use] - Advanced rock tumbler comes with easy-to-follow instructions, Digital LCD screens with a 9-Day Polishing Timer & 3 Speed Settings for...
- [What's in The Box] - Rock tumbler machine, low-noise barrel, 4 polishing refill grits, 1 Rock Tumbling Ceramic Filler media, 10 assorted rough rocks,...
- [Gems Hobby Toy Gift] - Our rock Tumbler science kit is a fun and educational Gems Hobby toy for all ages, a great kids' gift for a birthday, or...
SaleBestseller No. 2
Large 2.5LB Professional Rock Tumbler Kit, 3-Speed Motor & 9-Day Timer, 100% Rubber Barrel, Rotary...
- 90-Day refund guarantee & 2-Year free replacement, please feel free to reach out us for any issue. We are always here, rain or shine.
- START A TUMBLING JOURNEY -- Koolstone Rock Tumbler turn rough rocks into polished gems, then you will be very excited to see the stones change with...
- 2.5LB LARGE CAPACITY & 75% QUIETER -- An updated features is that KoolStone Rock Tumbler has a large 2.5LB capacity. Which allows to tumbler more...
- FASTER POLISHING TIME & BETTER POLISHING RESULTS -- 3-speed controls (providing more granular tumbling results), a 9-day timer (with automatic shutoff...
- EVERYTHING YOU NEED FOR TUMBLING IS HERE -- KoolStone Rock Tumbler has everything you need to create polished gemstones. Rock tumbler, 2.5LB capacity...
SaleBestseller No. 3
KomeStone K1 Large 2.5LB Barrel Professional Rock Tumbler Kit, Advanced 3-Speed Motor & 9-Day Timer...
- 2-Year Warranty for Free Exchange and Replacement. For any issues or if you have missed Amazon's 30-day return window, please reach out via our...
- 【POLISH YOUR OWN GEMSTONES】Komestone tumbler kit makes tumbling even easier in an interesting way to turn any rough stones and polish them into...
- 【THE ONLY TUMBLER YOU NEED】Built in with the super high quality motor and thicken tier level rubber barrel, both are super durable for lasting for...
- 【ALL IN ONE HOBBY & EDUCATIONAL TUMBLING KIT】Our KomeStone rock tumbler kit has everything that need for tumbling, including 1LB for 9 types of...
- 【TUTORIAL GUIDE FROM BEGINNERS TO EXPERTS】Make tumbling easy! We created this Instruction & Learning Guide with full-color contents for both...
Bestseller No. 4
NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit - Durable Leak-Proof Rock Polisher for Kids - Complete...
- CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This starter rock tumbler makes it fun and easy to turn rough...
- A TUMBLER THAT'S MADE TO LAST - The durable motor allows you to tumble multiple batches of rocks. An improved, leak-proof barrel is lined with rubber...
- ALL-IN-ONE TUMBLING KIT - This kit has everything you need and then some! You get ½ a pound of rough rocks with nine different types of gemstones...
- EASY TO USE AND EDUCATIONAL - Detailed tumbler instructions lead you step-by-step through the rock tumbling process, A full-color learning guide...
- SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your...
SaleBestseller No. 5
Rock Tumbler Refill Grit Media Kit, Stone Polisher (3.5 Pounds Polishing Grits + Poly Plastic...
- [5 STEPS] Just measure in the grit, add enough water to cover the stones, seal the barrel, and tumble. The only variable is how much of the product to...
- [COMPLETE KIT] 5 Step grit pack and ceramic filler for use in 15 lb. tumbler or five 3 lb. tumbles. Coarse Grit, Medium Grit, Pre-polish Grit, Grit,...
- [EASY TO USE] Includes a clear instruction guide on how to use the grits and plastic pellets.Large Amount of Grit, This is a large amount of each size...
- [COMPATIBLE WITH ANY BRAND TUMBLER] Tumbler-Polishing-Grit-Refill-Kit-for Polishing Agate-Jasper-Sea Glass- Gemstones Turquoise Sun Stones Obsidian...
- [Win-win] Brave Finder respect and put buyers' needs first. We're always here to help if any quality issues and about the rock tumbler grit kit.
SaleBestseller No. 6
Dan&Darci Rock Tumbler Grit Refill Kit - 3.5 Pounds Grits Media + Poly Plastic Pellets - Rocks...
- Complete rock tumbling medium kit: 3.5 lbs. 4-step grit set and poly plastic pellets, to polish any rock. Packaged in easy-to-use-and-store bottles
- Includes: Step #1 Coarse Grit (1 lb.), Step #2 Medium Grit (1 lb.), Step #3 Pre-polish Grit (1/2 lb.), Step #4 Grit (1/2 lb), Polypropylene Plastic...
- Compatible with all rock tumblers: Can be used in tumblers from any brand: Dan&Darci, Elenco, Lortone, National Geographic, Smithsonian, Thumler and...
- Easy to use: Includes a clear instruction guide on how to use the grits and plastic pellets.
- 100% satisfaction guaranteed: Love it, or your money back! If you are not satisfied with the kit, we'll refund you 100% of the money, no questions...
Bestseller No. 7
NATIONAL GEOGRAPHIC Professional Rock Tumbling Kit - Patent-Pending Rock Polisher for Kids & Adults,...
- PROFESSIONAL TUMBLING - With its large 2-pound barrel, three selectable speeds; and timer with settings for days and hours, the Ultimate Tumbler...
- QUIETEST TUMBLER - The Ultimate Rock Tumbler's all-new design includes a sound-dampening cover that makes tumbling quieter than ever, perfect for...
- ALL-IN-ONE TUMBLING KIT - This kit has everything you need to get started, including one pound of rough rocks, four bags of grit, five jewelry...
- PATENTED AGITATE MODE FOR LESS BREAKAGE - The Ultimate Rock Tumbler's patented agitate mode provides even more versatility! Its gentle, back-and-forth...
- HIGH-QUALITY EDUCATIONAL TOYS - National Geographic is proud to make the highest quality hands-on science toys, and all our products are backed by...
Bestseller No. 8
Rockhound's 1st Choice Rock Tumbler Gem Refill Kit -Natural Gemmy Mexico Fluorite Rough- 8oz
- Gemmy fluorite tumbling rough. Shades of colors quite variable .Green and Purple are the primary colors. Some pieces are mixed between green and...
- There are around 2-3 pieces per half-pound. Average size is 1.5" x 2.0" Top grade stones: Natural fluorite rough directly from the mine in Mexico. The...
- Fluorite is very easy to identify if you consider cleavage, hardness, and specific gravity. It is the only common mineral that has four directions of...
- Takes an nice Polish-Great refill for those willing to adopt some basic changes to their tumbling process.It will polish nicely using a shortened...
- NOTE* This Bag DOES Not contain Grits, Findings, jewelry parts,or adhesives that may have been included with the original tumbler accessories.
Bestseller No. 9
NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - Gemstone Mix of 9 varieties including Tiger's Eye,...
- GEMSTONES OF 9 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!
- DETAILED LEARNING GUIDE - Our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts
- SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your...
Bestseller No. 10
Rock Tumbler Grit Kit and Ceramic Tumbling Filler Media | Polly Plastics (4.5 Pounds Total Weight)
- COMPLETE KIT - 4 Step grit pack and ceramic filler for use in 15 lb. tumbler or five 3 lb. tumbles.
- CONTAINS - 1 lb. 60/90 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide, Grit, ½ lb. 500 Fine Silicon Carbide, ½ lb 1200 Aluminum...
- GRIT SOLD BY WEIGHT NEEDED FOR EACH STEP – Steps 1 & 2 are 1 lb. each and Steps 3 & 4 are ½ lb. each but all are sold in the same size jars for...
- PREMIUM POLISHING MATERIALS, COMPATIBLE WITH ALL BRAND TUMBLERS - Proven to produce a beautiful polish. Made in the USA.
- BEGINNER FRIENDLY - Complete easy-to-follow instructions included. 100% satisfaction guarantee on all our products.
Bestseller No. 11
Polly Plastics Rock Tumbler Refill Grit Media Kit (3 pounds) | 4-Steps For Tumbling Stones
- COMPLETE ROCK TUMBLING MEDIA KIT - 4-Step grit pack with 3 pounds of total weight. Our universal grit is designed for any rock tumbler. Get up to five...
- PACKAGE CONTAINS - 1 lb. 60/90 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide Grit, ½ lb. 500 Fine Silicon Carbide, ½ lb. 1200...
- GRIT SOLD BY WEIGHT NEEDED FOR EACH STEP – Steps 1 & 2 are 1 lb. each and Steps 3 & 4 are ½ lb. each but all are sold in the same size jars for...
- PREMIUM POLISHING MATERIALS, COMPATIBLE WITH ALL BRAND TUMBLERS - Proven to produce a beautiful polish. Made in the USA.
- BEGINNER FRIENDLY - Complete, easy-to-follow instructions included with rock tumbling tips. 100% satisfaction guaranteed.
Bestseller No. 12
NATIONAL GEOGRAPHIC Gross Science Lab - 15 Gross Science Experiments for Kids, Dissect a Brain,...
- SUPER GROSS MEANS SUPER FUN - Science kits are way more fun when the experiments include boiling boogers, creating glowing worms, and making a test...
- EASY-TO-FOLLOW-INSTRUCTIONS - The experiment guide has kid-friendly instructions with illustrations for each step, and fascinating insight into the...
- EVEN MORE TO EXPLORE - When kids' science gifts offer this much, there's no going wrong! The bonus booklet inside contains 30 easy experiments, all...
- HANDS-ON STEM - While kids are enthralled by all the yucky fun, they'll be learning about polymers, chemical reactions, pH science, and a lot more!...
- SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your...
Bestseller No. 13
BOTARO MJR Tumblers 5 LB per Polish 60 90 Silicon Carbide Rock Refill Grit Abrasive Media Step 1 USA
- 5 pounds of 60/90 Graded Silicon Carbide Grit (Step 1)
- Superior Blend of Green/Black Silicon Carbide
- Compatible with ANY BRAND OF TUMBLER
- Comes with FREE Polishing Instructions
Bestseller No. 14
NATIONAL GEOGRAPHIC Rock Tumbling Kit - 3LB Extra Large Capacity, 3LB Rough Gemstones, 4 Polishing...
- CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This professional rock polisher makes it fun and easy to turn...
- A TUMBLER THAT'S MADE TO LAST - The durable motor has time and speed control settings so you can set it, and forget it. An improved, leak-proof barrel...
- ALL-IN-ONE TUMBLING KIT - This kit has everything you need and then some! You get three pounds of rough rocks with nine different types of gemstones...
- USE GEMFOAM FOR DAZZLING RESULTS - This rock polishing kit stands apart from others thanks to our new, reusable GemFoam rock polisher! Add GemFoam and...
- SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your...
Bestseller No. 15
Tonmp 3 LBS Rock Tumbler Grit Set, Rock Tumbler Grit Polish Refill - 4 Basic Step Tumbling Media...
- 4-Step grit pack with 3 pounds of total weight. Our universal grit is designed for any rock tumbler.
- Step 1 - 1 lb. 60 Coarse Silicon Carbide Grit, Step 2 - 1 lb. 180/220 Medium Silicon Carbide Grit, Step 3 - 1/2 lb. 500 Fine Silicone Carbide, Step 4...
- Packaged in 4 bottle to safely store unused product for later.
- The kits Will work with all rock tumbler.Makes high quality rock tumblers and materials.
- Purchase with confidence. We proudly back our product with a 100% satisfaction guarantee
Bestseller No. 16
Gener8 Rock Tumbler Activity Kit Create Beautiful Polished Stones
- this rock tumbler kit is diy heaven! create beautiful polished stones, this kit has everything u need. give ur polished gems as gifts or use in more...
- what's included: rock tumbler, usb cable, accessories, instructions, coarse grinding powder, fine grinding powder, polishing powder, final polishing...
- Christmas Toy Gift Idea!
- brand: gener8
- ages: 8+ (choking hazard) / caution: electric toy
Bestseller No. 17
NATIONAL GEOGRAPHIC Crystal Growing Kit - 3 Vibrant Colored Crystals to Grow with Light-Up Display...
- GROW VIBRANT COLORED CRYSTALS - Grow crystals in 3 amazing colors: blue, purple, and green. With this engaging and educational science experiment for...
- NIGHT LIGHT DISPLAY - Show off your crystals on the patent-pending light-up display. With 7 single color modes, rainbow color mode, and 3 brightness...
- COMPLETE SCIENCE KIT – Contains all you need! Growing powder, clear seed rocks, growing chamber, light-up display, and easy-to-follow instructions....
- START A ROCK COLLECTION – This kit comes with 3 real gemstone specimens, including a geode, green fluorite, and blue calcite, along with a detailed...
- SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your...
Bestseller No. 18
The Original Thumler's Tumbler Accessories Grit Pack #300
- 4 Oz. Coarse Grit
- 4 Oz. Fine Grit
- 2 Oz. Polish
- 2 Oz. Prepolish
Bestseller No. 19
NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Durable Leak-Proof Rock Polisher with 7-Day Timer –...
- CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This robust rock polisher makes it fun and easy to turn rough...
- A TUMBLER THAT'S MADE TO LAST - The durable motor has time and speed control settings so you can set it, and forget it. An improved, leak-proof barrel...
- ALL-IN-ONE TUMBLING KIT - You get 1/2 pound of rough rocks with nine different types of gemstones inside, five jewelry fastenings, tumbler grit, a...
- USE GEMFOAM FOR DAZZLING RESULTS - This rock tumbling kit stands apart from others thanks to our new, reusable GemFoam rock polisher! Add GemFoam and...
- HIGH-QUALITY EDUCATIONAL TOYS - National Geographic is proud to make the highest quality hands-on science toys, and all our products are backed by...
Bestseller No. 20
Playz Explosive Rainbow Volcano Kit for Kids with 23+ Science Chemistry Set Activities &...
- GLOWING RAINBOW EXPLOSIVES - The most chromatic educational toys for boys & girls! Mix up fun & safe rainbow lava bombs that glow in the dark and host...
- WORLD-FAMOUS VOLCANO ERUPTIONS - With this amazing volcano science kit, your energetic kids will have a good time recreating a bad day in Pompeii and...
- REAL STEM LEARNING - Don't settle for poorly-engineered STEM toys - our proven methods bring Science, Technology, Engineering, and Math to life, with...
- AGE APPROPRIATE - Playz Rainbow Volcano STEM kit makes an excellent Christmas or birthday gift for boys, girls, kids, teens ages 8-12 years old &...
- THE PLAYZ PROMISE - Whether you are looking for entertainment or an educational toy that boosts brainpower, this top science toy of 2018, 2019, 2020,...
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FAQ:
Q: How do you tumbler rocks?
A: Now seal the barrel and place it on the tumbler. The first step of the four-step tumbling process is to run the rocks in the tumbler with coarse grit. We begin with a barrel that is about 2/3 to 3/4 full of tumbling rough, then add two level tablespoons of coarse grit (we use 60/90 grit silicon carbide) for each pound of rock.
Q: How much grit should I use when tumbling with the thumler?
A: If you are tumbling with the Thumler’s Model MP-1 tumbler (which has a two-pound capacity barrel), you can follow the instructions below, but use about two level tablespoons of grit or polish in each of the tumbling steps (Step 1 through Step 4). When tumbling you will place enough rocks in the barrel to make it about 2/3 to 3/4 full.
Q: How do I avoid contamination when using a tumbler?
A: Avoiding this type of contamination is easy: just thoroughly clean the rocks, the tumbler barrel, and your tools when you change from one grit size to another. Another way that contamination occurs is when you use rocks that have a granular texture or are brittle. These rocks might break or shed grains or fragments in the tumbler.
Q: How much rock do you put in a tumbler barrel?
A: Before you load the tumbler barrel, be sure that it is perfectly clean. There should be no grit or rock fragments left in the barrel from a previous tumble. To prevent leaks, the rim of the barrel and the lid should be totally free from grit or rock particles. Once you have a clean barrel, add enough rock to fill the barrel about 2/3 to 3/4 full.