---
product_id: 559456958
title: "MJR Tumblers Refill Grit Kit for 20 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish"
brand: "mjr tumblers"
price: "€ 145.38"
currency: EUR
in_stock: false
reviews_count: 1
url: https://www.desertcart.pt/products/559456958-mjr-tumblers-refill-grit-kit-for-20-lb-rock-tumblers
store_origin: PT
region: Portugal
---

# exact 20 LB tumbler compatibility high-purity Silicon Carbide blend 4-step precision grit system MJR Tumblers Refill Grit Kit for 20 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish

**Brand:** mjr tumblers
**Price:** € 145.38
**Availability:** ❌ Out of Stock

## Summary

> 🪨 Elevate Your Rock Polishing Game—Don’t Just Tumble, Transform!

## Quick Answers

- **What is this?** MJR Tumblers Refill Grit Kit for 20 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish by mjr tumblers
- **How much does it cost?** € 145.38 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/559456958-mjr-tumblers-refill-grit-kit-for-20-lb-rock-tumblers)

## Best For

- mjr tumblers enthusiasts

## Why This Product

- Trusted mjr tumblers brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tailored for 20 LB Tumblers:** Optimized quantities perfectly sized for 20-pound rock tumblers—no guesswork, just flawless results.
- • **Versatile & Expandable Range:** Part of MJR’s extensive grit and media lineup, allowing you to customize or upgrade your tumbling setup as you grow.
- • **Bonus Polishing Instructions Included:** Get expert guidance free with every kit to ensure your stones reach showroom shine every time.
- • **Precision-Engineered 4-Step Grit System:** From coarse to ultra-fine, master every polishing stage with 60/90, 120/220, 500/600 Silicon Carbide grits plus 1200 Aluminum Oxide polish.
- • **Premium Green/Black Silicon Carbide Blend:** Experience faster, sharper, and longer-lasting grinding power thanks to high-purity green silicon carbide in the initial stage.

## Overview

The MJR Tumblers Refill Grit Kit is a meticulously calibrated 4-step polishing system designed specifically for 20-pound rock tumblers. Featuring a superior blend of green and black silicon carbide grits and a high-grade aluminum oxide polish, this kit delivers efficient, professional-grade stone finishing. With included polishing instructions and compatibility with MJR’s full media range, it’s the go-to choice for hobbyists aiming for flawless, high-gloss results.

## Description

Grit Kit for 20 pound Rock Tumblers20 ounces of 60/90 Graded Silicon Carbide Grit (Step 1) 20 ounces of 120/220 Graded Silicon Carbide Grit (Step 2) 10 ounces of 500/600 Graded Silicon Carbide Grit (Step 3) 10 ounces of 1200 Aluminum Oxide Polish (Step 4) Comes with FREE Polishing Instructions We use a superior blend of Green/Black Silicon Carbide for our first stage. Green Silicon Carbide is of higher purity than Black Silicon Carbide, therefore it will work faster than Black Silicon Carbide because it's harder and stays sharper longer. MJR Tumblers offers a large selection of heavy duty tumblers, a full range of silicon carbide grit (50, 80, 60/90, 500, 600, 500/600 and 1500) and aluminum oxide (400/600 and 1200). These can be purchased individually in any weight denomination that fits your needs or we have pre-made kits for your specific size tumbler. We have kits available with or without plastic pellets.

Review: Went through all grits to polish stone in a tumbler, and ran the polish grit twice, with no polish result to any the stones. When I have used other grits, I have successfully brought the stones to a high gloss in the same tumbler.

## Features

- 20 ounces of 60/90 Graded Silicon Carbide Grit (Step 1)
- 20 ounces of 120/220 Graded Silicon Carbide Grit (Step 2)
- 10 ounces of 500/600 Graded Silicon Carbide Grit (Step 3)
- 10 ounces of 1200 Aluminum Oxide Polish (Step 4)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F6YBMZC |
| Are batteries included? | No |
| Battery type | No batteries required |
| Brand | MJR Tumblers |
| Colour | Grey |
| Customer Reviews | 4.5 4.5 out of 5 stars (36) |
| Date First Available | 13 September 2023 |
| Item Weight | 1 kg 700 g |
| Item part number | MJR20pgk |
| Manufacturer | MJR Tumblers |
| Net Quantity | 1 Count |
| Package Dimensions | 22.2 x 17.91 x 5.99 cm; 1.7 kg |
| Power Source | manual |

## Images

![MJR Tumblers Refill Grit Kit for 20 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 1](https://m.media-amazon.com/images/I/41dCQQPah0L.jpg)
![MJR Tumblers Refill Grit Kit for 20 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 2](https://m.media-amazon.com/images/I/41orvMMQEnL.jpg)
![MJR Tumblers Refill Grit Kit for 20 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 3](https://m.media-amazon.com/images/I/510Y2WkXQuL.jpg)
![MJR Tumblers Refill Grit Kit for 20 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 4](https://m.media-amazon.com/images/I/51WQWa-9rkL.jpg)
![MJR Tumblers Refill Grit Kit for 20 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 5](https://m.media-amazon.com/images/I/51dlXNjXKJL.jpg)

## Customer Reviews

### ⭐ Review
*by V***I on 23 November 2021*

Went through all grits to polish stone in a tumbler, and ran the polish grit twice, with no polish result to any the stones. When I have used other grits, I have successfully brought the stones to a high gloss in the same tumbler.

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---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-28*