The key to creating quality jewelry, pendants, and collectibles with your rock tumbler, is sourcing the best grit for all stages to grind down rough rocks until your collection shines with a beautiful polish.

we’ve put together a collection of the best Rock Tumbler Grits that are currently available on the market. To help you find the perfect Rock Tumbler Grit among a wide variety of options, we constantly update our collection with new and trending models.

10 Best Rock Tumbler Grits

Based on dozens of customer reviews and ratings, the followings are the top 10 best-selling Rock Tumbler Grits:

Top Rated Rock Tumbler Grit Reviews

Since we’ve mentioned 10 different models of Rock Tumbler Grits on the above list, it may be difficult for you to find the right one for your needs. This is why we listed the key features of each of these Rock Tumbler Grits below:

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Product Highlights:

  • 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 Poly Filler Pellets (1/2 lb.), Instruction Guide.
  • Compatible with all rock tumblers: Can be used in tumblers from any brand: Dan&Darci, Elenco, Lortone, National Geographic, Smithsonian, Thumler and more.
  • 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 asked.
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Product Highlights:

  • HIGH QUALITY – This rock polisher grit refill pack comes with enough high-quality silicon carbide grit to put a dazzling polish on approximately 8-10 lbs. of rocks, gems, glass, and more
  • EASY TO USE FOUR-STAGE ROCK GRIT – The first rock tumbling grit stage provides initial shaping, the second smooths rock surfaces, the third pre-polishes rocks, and the fourth provides the final polish
  • COMPATIBLE WITH ALL TUMBLERS – This complete 4-step tumbling grit refill kit works with all rock polishers. For best results, use with National Geographic tumblers and rock tumbling supplies
  • EASY TO MEASURE AND STORE – Each rock tumbling grit stage is packaged in a wide-mouth container with secure, screw-top closure
  • SATISFACTION GUARANTEED – The National Geographic STEM series provides high-quality products that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you
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Product Highlights:

  • 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 Oxide Polish and 1.5 lbs. non-abrasive ceramic filler cylinders. No need to keep ceramic separate for each stage – rinse and use the same batch through all the tumbling stages.
  • 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 packaging consistency. The different weights, along with different densities, will mean that jars will not have equal amounts of fullness.
  • 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.
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Product Highlights:

  • QUALITY GRIT RESULTS IN A DAZZLING POLISH – The rock polishing grit in this pack is high-quality silicon carbide and will polish 8-10 lbs of rocks, includes measuring scoop and storage containers with secure screw-top closures for easy storage
  • IMPROVE YOUR ROCK TUMBLING RESULTS – Ceramic tumbler media makes the entire rock tumbling process more effective, improving delivery of rock tumbling grit, quieting tumbler noise, reducing rock breakage, and acting as a filler for smaller batches
  • BRAND NEW WAY TO MAKE TUMBLED ROCKS SHINE – GemFoam is a unique new rock polisher media that gives unprecedented shine to tumbled rocks. Just add the patent-pending rock polishing media to your tumbler after the final grit cycle for great results!
  • WORKS WITH ANY ROCK TUMBLER – The tumbling supplies in this set are safe to use with any rock tumbler. The tumbling grit, ceramic pellets, and GemFoam together improve rock tumbling performance and yield impressive results
  • HIGH-QUALITY EDUCATIONAL TOYS – National Geographic is proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service.
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Product Highlights:

  • 💎【 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 use in your rock tumbler. We suggest 2 tbsp of grit per pound of stones, which is a good rule of thumb.
  • 💎【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, Polypropylene Plastic Poly Filler Pellets and Instruction Guide.
  • 💎【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 grit for the price.
  • 💎【COMPATIBLE WITH ANY BRAND TUMBLER】Tumbler-Polishing-Grit-Refill-Kit-for Polishing Agate-Jasper-Sea Glass- Gemstones Turquoise Sun Stones Obsidian Quartz Crystals Healing Stones. Each to have pretty rocks/gems.
  • 💎【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.
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Product Highlights:

  • 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 tumble batches from a standard 3lb barrel.
  • 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 Aluminum Oxide Final Polish.
  • 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 packaging consistency. The different weights, along with different densities, will mean that jars will not have equal amounts of fullness.
  • 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.
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Product Highlights:

  • 💎【High Quality,Complete Rock Tumbling Media Kit】This rock polishing kit includes 4 bottles of grit packets and ceramic filler,1 bottle of polishing ball beads,and 12 rock polish.Rock tumbler refill kit.
  • 💎【Efficient,Easy-to-use Rock Tumbler Grit】The Package 1 coarse grit,rock tumbling grit stage provides initial shaping;the NO.2 medium grit for a smooth rock surface;the Package 3 pre-polished rock to brighten the surface of the stone;the Package 4 final polishing.The final sublimation step,the ultimate color lifting and polishing,turns into a real gem.
  • 💎【Versatile Rock Tumbler Refill Kit with Great Applicability】Friendly to together with beginners,compatible with all types of kids rock tumbler,rock tumblers for adults.Providing clear instructions,simple and good to start,everyone can have their own gemstones.
  • 💎【Bottle Design,Easy to Store and Control】Each serving of rock polishing grit stage is individually packaged in a bottle.Has screw cap closure is safe and environmentally friendly and easy to reuse multiple times.Easier to store than a bag and keep your desk neat and tidy.
  • 💎【Lovely Packaging and Satisfaction Guarantee】Our rock tumbling kit is packaged in a mystery box,suitable for giving kids as Christmas gifts.One of the National Geographic STEM encouraging product series,accompany your child to explore the amazing nature,learn from the experiment,enjoy the tumble!
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Product Highlights:

  • 4 Step Abrasive Kit with Enough Abrasive Media for a Single Batches of Rock using a 3 lb Barrel
  • Kit includes Coarse Grit, Medium Grit, Pre-Polish and Final Polish
  • Easy to Follow Step by Step Instructions
  • Packaged in Durable Plastic Bags with Pre-Measured Abrasive.
  • MADE IN USA
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Product Highlights:

  • ★【4 Steps】Be Patient. There are 4 total cycles, 7 days each to have pretty rocks / gems. Step 1, 60 Coarse Silicon Carbide Grit. Step 2, 220 Medium Silicon Carbide Grit. Step 3, 500 Fine Silicone Carbide Grit. Step 4, 1200 Aluminum Oxide Grit. 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 use in your rock tumbler. We suggest 2 tbsp of grit per pound of stones, which is a good rule of thumb.
  • ★【Large Amount of Grit】This is a large amount of each size grit for the price. This kit comes with enough grit to complete approximately 16-20 lbs of rocks. This kit contains 2 lbs 60 Coarse Silicon Carbide Grit, 2 lbs 220 Medium Silicon Carbide Grit, 1 lb. 500 Fine Silicone Carbide Grit, 1 lb. 1200 Aluminum Oxide Final Polish Grit. COMPATIBLE WITH ALL BRAND TUMBLERS.
  • ★【Jars, Labels & a Scoop】Nice hard plastic jars with lids (as opposed to plastic bags). Bottle caps are very secure. Definitely they will not leak. Use the amount you need and set it back on the shelf for the next round. A scoop is included for the correct dose. No need to pour the material out, which possibly make a mess while doing so. They are neatly packaged and easy to read labels. Tip: you could put your tumbler on a foam pad to eliminate noise.
  • ★【Professional Material】The final polish in this kit is aluminum oxide which is what the professional use (as opposed to silicon carbide), making sure that you can achieve a wet polished look. If you are expecting nice shiny stones you will have to run the last stage. The aluminum oxide is what really makes them shine (providing you have done everything else correctly).
  • ★【Satisfaction Guarantee】 If you don’t get the satisfactory polished stones or there is anything else you are dissatisfied with, please contact us by E-mail, and within 24 hours, we will do our best to satisfy you or give you a full refund while you don’t need to return the product.
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Product Highlights:

  • 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 experience is anything less than extraordinary, let us know so we can make it right for you

Video Overview

Tumbling and Polishing Rocks. Step 1. The course grit tumble.

Step 1 in the rock tumbling and polishing process. Putting the rocks in the tumbler, how many rocks? Putting in the 60/90 mesh silicon carbide abrasive (grit) …

Final Words

So, these are all of the Best Rock Tumbler Grits available on the market. We hope this collection was helpful to find the right Rock Tumbler Grit for the money. However, we recommend checking out the features, benefits, and problems of each of these Rock Tumbler Grits before taking your decision.