Best Tumbling Media For Plastic Parts In September 2026

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In this article, we will present the top 10 Best Tumbling Media For Plastic Parts available on the market, along with our expert reviews. Get one of them and have fun! You’ll love it!

To help you in your search, we have completed this list of the Best Tumbling Media For Plastic Parts.

Top Rated Best Tumbling Media For Plastic Parts Of 2026

Rank	Product Name	Score
1	NATIONAL GEOGRAPHIC Rock Tumbler Refill - 3.28 Pounds Tumbling Grit Media for Stone Buy Now	9.7 Buy Now
2	Rock Tumbler Grit Kit and Ceramic Tumbling Filler Media | Polly Plastics Buy Now	9.5 Buy Now
3	Surf Tumbling Media - General Purpose Plastic Tumbling Media - 2.5 LBS Buy Now	9.1 Buy Now
4	Polly Plastics Rock Tumbler Tumbling Media Grit Kit & Plastic Filler in Heavy Buy Now	8.8 Buy Now
5	Rock Tumbler Refill Grit Media Kit (3 pounds) by Polly Plastics | 4-Steps Buy Now	8.6 Buy Now
6	3 pounds Poly Plastic Pellets Rock and Stone Tumbler Tumbling Media Buy Now	8.3 Buy Now
7	8 lbs or 3.6 kg Ground Walnut Shell Media 12-20 Grit - Medium Buy Now	8.1 Buy Now
8	8 lbs or 3.6 kg Ground Walnut Shell Media 18-40 Grit - Fine Buy Now	7.8 Buy Now
9	Rock Culture Rock Tumbler Tumbling Media Grit Kit in Heavy Duty Resealable Bags Buy Now	7.5 Buy Now
10	Frankford Arsenal 4.5 lb Corn Cob Media in a Reuseable Plastic Container Buy Now	7.2 Buy Now

1. NATIONAL GEOGRAPHIC Rock Tumbler Refill - 3.28 Pounds Tumbling Grit Media for Stone

• Polish rocks and more - including quartz, jasper, tiger's eye, glass and more!
• High quality - this kit comes with enough silicon carbide grit to complete approximately 8-10 lbs of rocks.
• Compatible with all tumblers - use this grit for tumbling rocks in any brand of rock tumbler. lortone, thumler, national geographic, elenco, smithsonian and more!
• 4 courses of grit - take your stones from rough material to polished gems over a 4-step tumbling process
• Recommended use - we recommend approximately 2 tablespoons of grit per pound of rocks.

2. Rock Tumbler Grit Kit and Ceramic Tumbling Filler Media | Polly Plastics

• Beginner friendly - complete instructions included. 100% satisfaction guarantee on all our products.
• 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.
• Made in the usa premium materials.
• Complete kit - 4 step grit pack and ceramic filler for use in 15 lb. tumbler or five 3 lb. tumbles.
• Strong spill-resistant packaging - packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused product for later.

3. Surf Tumbling Media - General Purpose Plastic Tumbling Media - 2.5 LBS

• Leaves a smooth matte finish ready for pre-plate, pre-anodize, or final polish.
• General purpose plastic tumbling media - pyramid shape - 1/4" size - 2.5 lbs
• Used in tumbling applications for surface and burr removal on softer metals, such as aluminum, copper, and brass. especially effective with small and intricate parts/pieces/shells.
• Reusable with a simple rinse between jobs to clean the media.
• Packaged in a slightly oversized double track sealed reusable bag for safe storage and continued use.

4. Polly Plastics Rock Tumbler Tumbling Media Grit Kit & Plastic Filler in Heavy

• Beginner friendly - complete instructions included. 100% satisfaction guarantee on all our products.
• Complete kit - 4 step grit pack for use in 15 lb. tumbler or five 3 lb. tumbles.
• Superior packaging - packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused product for later.
• 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
• Made in the usa premium materials.

5. Rock Tumbler Refill Grit Media Kit (3 pounds) by Polly Plastics | 4-Steps

• Made in the usa polly plastics is an american company with american sourced materials for superior quality control and reduced risk of contaminants.
• 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 coarse silicon carbide grit, 1 lb. 180/220 medium silicon carbide grit, lb. 500 fine silicone carbide, lb. 1200 aluminum oxide final polish.
• Beginner friendly - complete instructions included with rock tumbling tips. 100% satisfaction guaranteed.
• Superior packaging - packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused product for later.

6. 3 pounds Poly Plastic Pellets Rock and Stone Tumbler Tumbling Media

• Doll filling
• Tactical rest fill
• Weighted blanket filling

7. 8 lbs or 3.6 kg Ground Walnut Shell Media 12-20 Grit - Medium

• 12-20 grit medium course abrasive consistency
• Use low pressure 20-60 psi for soft/sensitive materials. exceeding 80 psi lowers the longevity of the walnut shell media.
• Made in the usa
• 100% crushed walnut shells, environmentally friendly.
• Medium course walnut shells polish surfaces without damaging the substrate

8. 8 lbs or 3.6 kg Ground Walnut Shell Media 18-40 Grit - Fine

• 18-40 grit fine abrasive consistency
• Use low pressure 20-60 psi for soft/sensitive materials. exceeding 80 psi lowers the longevity of the walnut shell media.
• Fine walnut shells polish surfaces without damaging the substrate
• Made in the usa
• 100% crushed walnut shells, environmentally friendly.

9. Rock Culture Rock Tumbler Tumbling Media Grit Kit in Heavy Duty Resealable Bags

• Compatible with all rock tumblers - our kit of grit media can be used effectively with any brand, style, and size of rock tumbler
• Quality you can trust - purchase with confidence. we proudly back our product with a 100% satisfaction guarantee
• Heavy-duty resealable bags - our thick-gauge re-sealable bags are designed to securely store the grits for repeated use with minimal mess
• Professional grade grit - this abrasive media features the same quality material as used by jewelers
• Complete 4-step kit - the kit contains every variety of grit you need to transform rough rocks into finely polished stones. this includes coarse, medium, fine, and final polishing grit media

10. Frankford Arsenal 4.5 lb Corn Cob Media in a Reuseable Plastic Container

• Durable: can be used multiple times before needing to change out with new media
• Versatility: can be used to clean/polish media in a brass tumbler and can also be used to fill shooting bags for the range
• Ease of use: just pour into the tumbler of your choice and get to cleaning
• Specs: 4.5 lb of media in a plastic reusable container
• Accuracy: corn polishes better than walnut and walnut cleans better than corn