









✨ Polish Like a Pro with MJR Tumblers! 🌟
The Refill Grit Kit from MJR Tumblers features a premium 12,000 grit sub micron aluminum oxide polish, designed for unparalleled rock polishing results. This all-in-one kit includes premeasured silicon carbide grits and is proudly made by a disabled and veteran-owned company in the USA. Perfect for both rotary and vibratory tumblers, it comes with easy-to-follow instructions to ensure you achieve the best shine possible.







| Grit Material Type | Silicon Carbide |
| Enclosure Material | Aluminum |
| Compatible Material | Stone |
| Grit Number | 120 |
| Grit Type | Coarse |
| Item Weight | 0.56 Pounds |
| Item Dimensions | 8 x 6 x 0.4 inches |
K**A
Passion-fueled and high quality
This grit and polish set is exceptional. You can tell it was crafted by people who genuinely care — not just about rocks, but about the process and purpose.This company emanates expertise and enthusiasm, and that shows in the results. My rocks came out more beautiful than ever and I would prefer to buy only from these rock guys. The picture is of some rocks from my apartment landscaping after the process .The instructions are detailed but easy to follow. It’s not your typical instruction manual, rather a sincere document created by the seller from the heart (their tips and tricks included!). It’s really unique and special.I’ve been using a “gimmicky” tumbler set for my HS STEM program and at home with my kids. As a teacher, is a great tool for many lessons and even many subjects.
A**P
MAKES TUMBLING ROCKS SO MUCH EASIER
This grit works just like all others, if used correctly. It is so easy to open and pour it into tumbler--the perfect amount for a 10-lb tumbler. Highly recommended.
S**D
Well worth the money. Very good quality
I absolutely love this rock polishing grit. I have had very good luck with it.
M**K
Great product
MJR Grit is a great product, always does a great job for me, quality grit at a decent price,
M**E
Great product
Great product and have used it several times.
W**.
Not enough product for the $ you pay
I been tumbling rocks for 8 years now .This is the best that i have found .But they are misleading the customer they show full bags of grit and polisher But you get very little in the bag maybe enough to tumble 2 of 3 pound barrels . I know the price is very high for what we get .I can not afford it any more 2 times i ordered & both times to little of product .
D**E
Tumbler Rock Polish
Great product.I noticed some complaints about the amount in the bags they ordered.If you ordered for a 3 pound tumbler, that’s what you get. Enough grit in each bag for one run of a 3 pound tumbler.Not sure what they expected….?Anyway, I get great results with this grit.I do do one more step with Tin Oxide but it’s really not necessary.Final step of borax for a day to get the rocks good and clean.Very happy with this product.
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.
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