






Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.
๐ Elevate your rock gameโshine like the pros, every time!
The MJR Tumblers Refill Grit Kit offers a professional-grade, four-stage polishing system using durable Silicon Carbide and Aluminum Oxide grits. Designed for 15 LB rock tumblers, it ensures quick stock removal and a brilliant finish. Compatible with any tumbler brand, this kit features a quiet, leak-resistant design for an effortless polishing experience.







| ASIN | B07F3Q72YD |
| Best Sellers Rank | 248,102 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 130 in Tumbling Media |
| Brand | MJR Tumblers |
| Compatible Material | Aluminium |
| Customer Reviews | 4.5 out of 5 stars 259 Reviews |
| Grit Material Type | Aluminium Oxide |
| Grit Number | 12000 |
| Grit Type | Coarse |
| Grit material | Aluminium Oxide |
| Grit type | Coarse |
| Item Dimensions | 20.3 x 15.2 x 3.8 centimetres |
| Item Weight | 1.45 Kilograms |
| Item dimensions L x W x H | 20.3 x 15.2 x 3.8 centimetres |
| Item weight | 1.45 Kilograms |
| Manufacturer | MJR Tumblers |
| Manufacturer Part Number | MJR15pgk |
| Material | Aluminum Oxide Silicon Carbide |
| Model Number | MJR15pgk |
| Number of Items | 4 |
| Unit Count | 1.0 count |
A**Y
Worked as advertised
I'm new to rock tumbling, I've used a few different polishing grits and this is the best one so far. I ran this polish cycle for 7 days and am happy with the results.
J**E
This is TRUE GRIT!
This is simply some of the best quality tumbler grit I have used. If you do the first three stages properly, then the 12,000 girt polish will be perfect. All in all this is good, works well in each stage, easy to use. the only thing that might make it better would be to package it in bottles instead of bags, but honestly, that's about it.
C**M
3 pounds of media to tumble 15 pounds of rock, not exactly what I though I was buying.
Kind of annoyed that they don't have the nice labels as shown in the photos, would have made it easy to keep separated. Instead there's these small clear labels on the bags that you have to find.... That's basically half star off instead of a full star.... Fortunately, identifying the grits by sight looks like it should be fairly easy, especially the 12,000 grit AO polish powder - wish that was available on its own.... but I did find a diamond powder / polish mix alternative that might work at a similar cost per pound. Would have been real nice if the description was a little more clear in what you get.... i.e. 3lb media for 15lbs of rocks... which is the other half star off.... I was looking at a 7.2lb of media kit for about the same price only it had the 1500grit AO polishing powder.
A**Y
Don't be misled or mistaken, this is only 3.4lbs of media. Tiny little bags
Don't be mistaken like I was. This isn't 15lbs of media.. I was looking for a good sized amount of media for a Vibratory polisher I had. And after seeing prices for actual large a mounts.. 10-15-20-40 lbs of media, I saw 15 lbs and figured that'd be good for a batch of stones I wanted to polish in my 5lb Vibratory tumbler... well. Turns out this is 3.4 lbs total between 4 stages of polishing media. Not hardly anything, I'd need 4 each (16 total) of those bags to even run 1 batch through. It appears to be great media, but for very very small tumblers. Just don't get it mixed up like I did thinking it's 15 lbs if media lol. Shipping and packaging was great and they left a coupon for 5 bucks off their store next order
N**L
Product dependability
Having used this grit assortment many times before I know I can depend on this product to work well with my rock polishing. For fellow polishers with a 15 pound tumbler, this a good kit to buy. It prevents you from having to purchase multicable smaller kits.
Trustpilot
1 week ago
2 months ago