---
product_id: 686824544
title: "Rock Grit Kit for 4.5kg Tumbler"
brand: "mjr tumblers"
price: "€ 75.11"
currency: EUR
in_stock: true
category: "Mjr Tumblers"
url: https://www.desertcart.sk/products/686824544-rock-grit-kit-for-4-5kg-tumbler
store_origin: SK
region: Slovakia
---

# 12,000 grit ultra-fine polish Pre-measured for 10lb tumblers 4-stage precision grit system Rock Grit Kit for 4.5kg Tumbler

**Brand:** mjr tumblers
**Price:** € 75.11
**Availability:** ✅ In Stock

## Summary

> 💎 Polish Like a Pro, Shine Like a Star!

## Quick Answers

- **What is this?** Rock Grit Kit for 4.5kg Tumbler by mjr tumblers
- **How much does it cost?** € 75.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/686824544-rock-grit-kit-for-4-5kg-tumbler)

## 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

- • **Universal Compatibility:** Works seamlessly with rotary and vibratory tumblers for versatile use.
- • **Proudly USA-Owned Quality:** Veteran-owned brand delivering reliable, premium tumbling grit every time.
- • **Effortless Pre-Measured Packs:** No guesswork—perfectly portioned for 10lb tumblers to save time and mess.
- • **Ultra-Fine 12,000 Grit Polish:** Achieve museum-quality shine with sub-micron aluminum oxide polish.
- • **Complete 4-Stage Polishing Power:** From rough to refined—coarse to ultra-fine grit for flawless stones.

## Overview

The MJR Tumblers Rock Grit Kit is a complete 4-stage polishing system designed for 10lb rock tumblers, featuring coarse to ultra-fine 12,000 grit aluminum oxide polish. Pre-measured for convenience and compatible with rotary and vibratory tumblers, this USA veteran-owned brand kit ensures consistent, high-quality rock polishing results with minimal effort.

## Description

MJR Tumblers Rock Grit Kit for 4.5kg Tumbler : desertcart.co.uk: Home & Kitchen

## Features

- COMPLETE 4-STAGE ROCK POLISHING SYSTEM: This refill grit kit includes all four essential stages of rock tumbling—coarse (60/90), fine (120/220), pre-polish (400/600), and ultra-fine 12,000 grit aluminum oxide polish. Designed to guide stones from rough surfaces to a smooth, polished finish.
- 12,000 GRIT ULTRA-FINE POLISH FOR FINAL FINISH: The included sub-micron aluminum oxide polish is designed for the final stage, helping bring out a smooth, refined surface. Ideal for achieving a clean and polished appearance after shaping and smoothing stages
- PRE-MEASURED FOR 10LB TUMBLERS – EASY TO USE: Each stage is pre-measured specifically for 10lb rock tumblers, simplifying the polishing process. Just add the contents at each stage and let the tumbler do the work—no complicated measuring required
- COMPATIBLE WITH ROTARY & VIBRATORY TUMBLERS: Works with most rock tumblers, including rotary and vibratory models. A versatile grit refill option for maintaining your polishing workflow or restocking supplies.
- USA OWNED BRAND WITH QUALITY MATERIALS: Offered by a USA-based, disabled and veteran-owned company. MJR Tumblers provides reliable rock tumbling supplies designed for consistent performance and ease of use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FHLKRY1 |
| Age Range Description | Kid |
| Brand Name | MJR Tumblers |
| Colour | Grey |
| Customer Reviews | 4.5 4.5 out of 5 stars (314) |
| Educational Objective | Develop patience and understanding of multi-step processes through rock tumbling. |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required | No |
| Item Weight | 30 Ounces |
| Manufacturer | MJR Tumblers |
| Manufacturer Part Number | MJR10pgk |
| Manufacturer recommended age | 8 months - 8 years |
| Material Type | Silicon Carbide Aluminum Oxide Plastic Pellets |
| Model Number | MJR10pgk |
| Number of Packs | 1 |
| Operation Mode | Manual |
| Set Name | 10 lb |
| Size | for 10lb barrel |
| Supported Battery Types | No batteries required |
| Theme | Nature |
| Unit Count | 1.0 count |

## Images

![Rock Grit Kit for 4.5kg Tumbler - Image 1](https://m.media-amazon.com/images/I/61aeQRPy1vL.jpg)

## Available Options

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

## Frequently Bought Together

- Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned
- 2 LBS Rock Tumbling Ceramic Filler Medi Rock Tumbling Ceramic Filler Media Non- Abrasive Ceramic Pellets for All Type Tumblers 3/16" X 3/8"
- Blue Marble National Geographic Rock Tumbling Media – GemFoam Reusable Rock Polisher Foam, Use After Rock Tumbling Grit Cycles, Adds Shine to Tumbled Rocks and Minerals, Rock Tumbling Supplies

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**Shop now:** [https://www.desertcart.sk/products/686824544-rock-grit-kit-for-4-5kg-tumbler](https://www.desertcart.sk/products/686824544-rock-grit-kit-for-4-5kg-tumbler)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-11-02*