---
product_id: 500431761
title: "Rock Tumbler Grit Kit Refill for 25lb Tumblers, 4 Step Silicon Carbide & 12,000 Grit Aluminum Oxide Polish, Stone Polishing Kit for Rotary & Vibratory Rock Tumblers"
brand: "mjr tumblers"
price: "$121.47"
currency: USD
in_stock: true
category: "Mjr Tumblers"
url: https://www.desertcart.us/products/500431761-rock-tumbler-grit-kit-refill-for-25lb-tumblers-4-step
store_origin: US
region: United States of America
---

# 4-stage premeasured silicon carbide grit 12,000 grit sub-micron polish Veteran & Disabled owned USA brand Rock Tumbler Grit Kit Refill for 25lb Tumblers, 4 Step Silicon Carbide & 12,000 Grit Aluminum Oxide Polish, Stone Polishing Kit for Rotary & Vibratory Rock Tumblers

**Brand:** mjr tumblers
**Price:** $121.47
**Availability:** ✅ In Stock

## Summary

> ✨ Polish Like a Pro, Shine Like No Other! 🪨

## Quick Answers

- **What is this?** Rock Tumbler Grit Kit Refill for 25lb Tumblers, 4 Step Silicon Carbide & 12,000 Grit Aluminum Oxide Polish, Stone Polishing Kit for Rotary & Vibratory Rock Tumblers by mjr tumblers
- **How much does it cost?** $121.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/500431761-rock-tumbler-grit-kit-refill-for-25lb-tumblers-4-step)

## 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

- • **Expert Guidance Included:** Comprehensive, easy-to-follow instructions with insider tips to elevate your rock tumbling game.
- • **Heavy-Duty 25lb Capacity:** Optimized for 25lb tumblers, delivering professional-grade polish for serious hobbyists and pros alike.
- • **Effortless Precision Stages:** Premeasured 4-stage silicon carbide grit ensures perfect results—just pour and tumble, no guesswork.
- • **Unmatched Ultra-Fine Polish:** Experience the pinnacle of shine with exclusive 12,000 grit aluminum oxide for flawless rock finishes.
- • **Proudly American & Veteran-Owned:** Support a disabled and veteran-owned company rooted in quality and passion from Pecatonica, Illinois.

## Overview

The MJR Tumblers Refill Grit Kit is a premium 4-stage polishing system designed for 25lb rock tumblers, featuring exclusive 12,000 grit sub-micron aluminum oxide polish and silicon carbide grits. This veteran and disabled-owned American brand delivers premeasured, easy-to-use components with expert instructions, ensuring unparalleled rock polishing results for hobbyists and professionals.

## Description

Buy Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 25lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned: Rock Tumblers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Extreme Polish! Every rock tumbling kit from MJR Tumblers comes with our Exclusive 12,000 Grit Sub Micron Extreme Aluminum Oxide Polish! No other polish even comes close to our results. If you want the best, MJR Tumblers 12,000 Grit Aluminum Oxide Extreme Polish is what you need!
- MJR Tumblers is a Disabled and Veteran Owned Company!
- Premeasured and works with all rotary and vibratory tumblers. All 4 Stages are premeasured for your tumbler, just pour and roll! It Can’t get easier than that!
- Each 25lb kit contains the following: 25oz of course 60/90 silicon carbide grit, 25oz of fine 120/220 silicon carbide grit, 12.5oz of pre polish 400/600 silicon carbide grit, 12.5oz of MJR Tumblers Exclusive 12,000 grit Extreme Aluminum Oxide Polish
- MJR Tumblers is Proud to be an American company located in Pecatonica Illinois in the good ole USA!
- Includes easy to understand rock polishing instructions with lots of tips and tricks with every purchase from MJR Tumblers!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BMP1BJFB |
| Age Range Description | Kid |
| Best Sellers Rank | #11,277 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Tumbling Media |
| Brand Name | MJR Tumblers |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,249) |
| Educational Objective | Team Building Skills |
| Included Components | Silicon Carbide Aluminum Oxide Media Polish |
| Is Assembly Required | No |
| Item Dimensions | 8 x 6 x 2.25 inches |
| Item Type Name | MJR Tumblers Refill Grit Kit for 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish |
| Item Weight | 2.27 Kilograms |
| Manufacturer | MJR Tumblers |
| Manufacturer Maximum Age (MONTHS) | 100 |
| Manufacturer Minimum Age (MONTHS) | 8 |
| Manufacturer Part Number | MJR25pk |
| Material Type | Aluminum Oxide, Silicon Carbide |
| Model Number | MJR25pk |
| Operation Mode | Manual |
| Power Source | Manual |
| Set Name | 25 lb Tumbler Kit |
| Size | for 25lb barrel |
| Supported Battery Types | No batteries required |
| Theme | Hobby |
| Unit Count | 1.0 Count |

## Product Details

- **Material:** Silicon Carbide, Aluminum Oxide
- **Grit Material:** Silicon Carbide, Aluminum Oxide
- **Item dimensions L x W x H:** 8 x 6 x 2.25 inches
- **Brand:** MJR Tumblers
- **Grit Type:** Coarse, Fine, Ultra Fine

## Images

![Rock Tumbler Grit Kit Refill for 25lb Tumblers, 4 Step Silicon Carbide & 12,000 Grit Aluminum Oxide Polish, Stone Polishing Kit for Rotary & Vibratory Rock Tumblers - Image 1](https://m.media-amazon.com/images/I/61aeQRPy1vL.jpg)
![Rock Tumbler Grit Kit Refill for 25lb Tumblers, 4 Step Silicon Carbide & 12,000 Grit Aluminum Oxide Polish, Stone Polishing Kit for Rotary & Vibratory Rock Tumblers - Image 2](https://m.media-amazon.com/images/I/71SVNiXuCwL.jpg)
![Rock Tumbler Grit Kit Refill for 25lb Tumblers, 4 Step Silicon Carbide & 12,000 Grit Aluminum Oxide Polish, Stone Polishing Kit for Rotary & Vibratory Rock Tumblers - Image 3](https://m.media-amazon.com/images/I/71ENSH8w-mL.jpg)
![Rock Tumbler Grit Kit Refill for 25lb Tumblers, 4 Step Silicon Carbide & 12,000 Grit Aluminum Oxide Polish, Stone Polishing Kit for Rotary & Vibratory Rock Tumblers - Image 4](https://m.media-amazon.com/images/I/61mhoieNFpL.jpg)
![Rock Tumbler Grit Kit Refill for 25lb Tumblers, 4 Step Silicon Carbide & 12,000 Grit Aluminum Oxide Polish, Stone Polishing Kit for Rotary & Vibratory Rock Tumblers - Image 5](https://m.media-amazon.com/images/I/71u-VNXNY6L.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- MJR Tumblers Refill Grit Kit for 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish
- Hiceeden 8 Pounds Rock Tumbling Filler Media, 1/5" x 2/5" Reusable Cylinder Ceramic Pellets Non-Abrasive for Rock Tumbler, Stone Polisher

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-18*