Name: Refill Grit Kit for 12 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish
Brand: Mjr Tumblers
SKU: 318896362
Price: 23912.00 JPY
Availability: InStock
Rating: 4.2 (5 reviews)

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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¥23912

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🪨 Elevate your rock tumbling game—polish like a pro, shine like no other!

EDUCATIONAL ENGAGING - Perfect for hands-on learning about geology and mineral properties, ideal for ages 8+.
READY TO USE REFILL KIT - No assembly needed—just add to your 12 LB tumbler and elevate your craft instantly.
PRECISION 4 STEP GRIT SYSTEM - From coarse to ultra-fine, master every polish stage with 12oz & 6oz graded media.
ULTRA FINE ALUMINUM OXIDE POLISH - 6oz of 1200 grit polish delivers a mirror-like shine that stands out.
PROFESSIONAL GRADE SILICON CARBIDE - Durable 60/90, 120/220, and 500/600 grit for expert-level rock tumbling results.

This refill grit kit for 12 LB rock tumblers includes 12oz each of 60/90 and 120/220 silicon carbide grit, 6oz of 500/600 silicon carbide grit, and 6oz of 1200 aluminum oxide polish. Designed for multi-stage rock polishing, it requires no assembly and is perfect for educational and hobbyist use, delivering professional-grade results with every tumble.

Specifications

ASIN	B07F3LNC55
Age Range Description	Kid
Brand Name	MJR Tumblers
Color	Grey
Customer Reviews	4.6 out of 5 stars 55 Reviews
Educational Objective	Learn about rock types and mineral properties through hands-on polishing activities
Is Assembly Required	No
Item Weight	36 Ounces
Manufacturer	MJR Tumblers
Manufacturer Minimum Age (MONTHS)	8.00
Manufacturer Part Number	MJR12pgk
Material Type	Aluminum, carbide
Operation Mode	Manual
Size	L
Theme	Geology

Reviews

L**E

Works well

Good product

26.03.2026

M**E

cool

Nice all the way!

8.07.2025

B**G

Good

9.11.2024

C**D

READ PAST TITLE

You get 2.5 lbs of media. Utterly misleading title. Who measures by the weight of media by the rocks you can allegedly tumble?

6.05.2022

C**E

Ok grit

Liked grit 1and 2. Prepolish wasn’t bad, polish wasn’t good. Didn’t polish rocks like I expected.

19.03.2022

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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