--- product_id: 684217135 title: "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" brand: "mjr tumblers" price: "Β₯10567" currency: JPY in_stock: true category: "Mjr Tumblers" url: https://www.desertcart.jp/products/684217135-refill-grit-kit-w-mjr-tumblers-premium-quality-extreme-polish store_origin: JP region: Japan --- # 4-stage premeasured grit system 12,000 grit sub-micron polish Proudly USA made, veteran owned 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 **Brand:** mjr tumblers **Price:** Β₯10567 **Availability:** βœ… In Stock ## Summary > πŸͺ¨ Polish Like a Pro, Shine Like a Legend! ## Quick Answers - **What is this?** 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 by mjr tumblers - **How much does it cost?** Β₯10567 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/684217135-refill-grit-kit-w-mjr-tumblers-premium-quality-extreme-polish) ## 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 - β€’ **Unmatched Polish Precision:** Experience the ultimate 12,000 grit aluminum oxide polish for rock tumbling perfection. - β€’ **Effortless Multi-Stage Process:** Premeasured 4-stage grit kit designed for seamless use with any 10lb rotary or vibratory tumbler. - β€’ **Complete Rock Tumbling Solution:** Includes coarse, fine, pre-polish, and extreme polish grits for flawless, showroom-worthy stones. - β€’ **Veteran-Owned Quality Assurance:** Support a disabled and veteran-owned American company delivering premium craftsmanship. - β€’ **Beginner Friendly with Expert Tips:** Free, easy-to-follow instructions included to master the art of rock polishing with confidence. ## Overview The MJR Tumblers Refill Grit Kit offers a premium 4-stage polishing system featuring an exclusive 12,000 grit sub-micron aluminum oxide polish. Designed for 10lb rock tumblers, this premeasured kit ensures effortless, professional-grade results. Proudly made in the USA by a disabled and veteran-owned company, it includes comprehensive instructions to elevate your rock tumbling experience. ## Description 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 : desertcart.ae: Arts & Crafts ## 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 10lb kit contains the following: 10oz of course 60/90 silicon carbide grit, 10oz of fine 120/220 silicon carbide grit, 5oz of pre polish 400/600 silicon carbide grit, 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! - Free, easy to understand rock polishing instructions with lots of tips and tricks are included with every purchase from MJR Tumblers! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07FHLKRY1 | | Age Range Description | Kid | | Brand Name | MJR Tumblers | | Color | Grey | | Customer Reviews | 4.4 4.4 out of 5 stars (1,029) | | Educational Objective | Develop patience and understanding of multi-step processes through rock tumbling. | | Is Assembly Required | No | | Item Weight | 30 Ounces | | Manufacturer | MJR Tumblers | | Manufacturer Part Number | MJR10pgk | | Manufacturer recommended age | 8 months and up | | Material Type | Silicon Carbide Aluminum Oxide Plastic Pellets | | Model Number | MJR10pgk | | Operation Mode | Manual | | Power Source | Hand-powered | | Size | for 10lb barrel | | Supported Battery Types | No batteries required | | Theme | Nature | | Unit Count | 1.0 Count | ## Product Details - **Brand:** MJR Tumblers - **Grit material:** Silicon Carbide - **Grit type:** Coarse - **Item dimensions L x W x H:** 20.3 x 15.2 x 3.8 centimeters - **Material:** metal, carbide Aluminum ## Images ![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 - 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 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/684217135-refill-grit-kit-w-mjr-tumblers-premium-quality-extreme-polish](https://www.desertcart.jp/products/684217135-refill-grit-kit-w-mjr-tumblers-premium-quality-extreme-polish) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-03*