









โจ Elevate your rock game with pro-grade polish perfection!
This MJR Tumblers Refill Grit Kit delivers a complete 4-stage polishing system with pre-measured silicon carbide and aluminum oxide grits designed specifically for 18lb rock tumblers. Compatible with rotary and vibratory models, it ensures a smooth, professional finish from coarse shaping to ultra-fine polishing. Proudly made by a USA veteran-owned brand, it combines premium materials and ease of use to transform rough stones into stunning polished gems.







| Asin | B07F75K1WR |
| Brand Name | MJR Tumblers |
| Compatible Material | Aluminium |
| Customer Reviews | 4.5 4.5 out of 5 stars (177) 4.5 out of 5 stars |
| Grit Material Type | Aluminum Oxide,Silicon Carbide |
| Grit Number | 60 |
| Grit Type | Medium |
| Importer Contact Information | ATM RETAIL 1st Floor Beside P and T Building Lakdi Ka Pul Hyderabad Telangana 500004 |
| Item Dimensions | 20.3 x 15.2 x 3.8 Centimeters |
| Manufacturer | MJR Tumblers |
| Material Type | Aluminium Oxide, Silicon Carbide |
| Model Number | MJR18pgk |
| Number Of Items | 4 |
| Part Number | MJR18pgk |
| Unit Count | 1.0 Count |
User
Will buy again
I purchased a rock tumbler, the first time I uses it I used the grit it came with. I wasn't happy with results. So looked into different grit. I only used the shine grit ( last stage) on the rocks that had already been tumbled with a shine grit and I was surprised at the difference. I haven't used the others but I'm sure the quality is just as good.
User
good product for polishing
good product, just what i needed
User
Only 4lbs
Just received my package... but its just 4lbs. Read carefully,. Don't be tricked, it has nothing to do with "18lbs tumblers". Yes, i was expecting 18lbs of grit, fealing deceived with only 4.
User
Works great
Arrived quicky and works just fine. It arrives with a coupon each timeI purchase this item, but I am unable to use it on this site, but I will continue to purchase this grit in the future.
User
Worked great
Works great and a good price. Note that I usually only use about 2tbs of grit for steps 1 and 2 and 1 tbs for 3 and 4 per 3lb barrel. Most grits call for twice this amount, meaning this grit goes further than the average
Trustpilot
3 weeks ago
2 months ago