--- product_id: 407853171 title: "Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish" brand: "mjr tumblers" price: "VT13228" currency: VUV in_stock: true reviews_count: 5 category: "Mjr Tumblers" url: https://www.desertcart.vu/products/407853171-refill-grit-kit-for-3-lb-rock-tumblers-silicon-carbide store_origin: VU region: Vanuatu --- # 12,000 grit sub-micron polish 4-step precision grit system Proudly USA made & veteran owned Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish **Brand:** mjr tumblers **Price:** VT13228 **Availability:** ✅ In Stock ## Summary > ✨ Elevate Your Rock Tumbling Game with Precision Polish Power! ⚙️ ## Quick Answers - **What is this?** Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish by mjr tumblers - **How much does it cost?** VT13228 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/407853171-refill-grit-kit-for-3-lb-rock-tumblers-silicon-carbide) ## 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 - • **Seamless Compatibility:** Perfectly engineered for 3 lb tumblers using silicon carbide and aluminum oxide media. - • **Compact & Efficient Refill Kit:** Optimized quantities designed specifically for 3 lb rock tumblers to maximize performance. - • **Veteran-Owned Quality Assurance:** Support a disabled veteran-owned brand with trusted American craftsmanship. - • **Precision Multi-Stage Grit System:** Four distinct grit grades (60/90, 120/220, 500/600, 12000) for flawless rock tumbling. - • **Ultra-Fine Polish for Mirror Finish:** 12,000 grit aluminum oxide polish delivers unparalleled shine and smoothness. ## Overview The MJR Tumblers Refill Grit Kit offers a professional-grade 4-step silicon carbide and aluminum oxide polishing system tailored for 3 lb rock tumblers. Featuring a premium 12,000 grit sub-micron polish, this USA-made, veteran-owned product ensures superior shine and smoothness for hobbyists and pros alike. ## Description Refill Grit Kit with MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Results. For 3lb Rock Tumblers with Silicon Carbide, MJR Tumblers is Disabled and Veteran Owned Company Located in Pecatonica Illinois USA. ## Features - 3 ounces of 60/90 Graded Silicon Carbide Grit (Step 1) - 3 ounces of 120/220 Graded Silicon Carbide Grit (Step 2) - 1.5 ounces of 500/600 Graded Silicon Carbide Grit (Step 3) - 1.5 ounces of 1200 Aluminum Oxide Polish (Step 4) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07DZ54NQN | | Best Sellers Rank | #350,791 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #994 in Household Cleaning Metal Polish | | Brand | MJR Tumblers | | Brand Name | MJR Tumblers | | Compatible Material | Aluminum Oxide; Silicon Carbide | | Country of Origin | USA | | Customer Reviews | 4.3 out of 5 stars 460 Reviews | | Grit Material | Aluminum Oxide,Silicon Carbide | | Grit Material Type | Aluminum Oxide,Silicon Carbide | | Grit Number | 12000 | | Grit Type | Medium | | Item Dimensions | 20.3 x 15.2 x 1 Centimeters | | Item Type Name | MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish | | Item Weight | 0.56 Pounds | | Item dimensions L x W x H | 20.3 x 15.2 x 1 Centimeters | | Manufacturer | MJR Tumblers | | Material | Aluminum Oxide Silicon Carbide Plastic Pellets | | Material Type | Aluminum Oxide Silicon Carbide Plastic Pellets | | Model Number | MJR3pgk | | Number of Items | 4 | | Part Number | MJR3pgk | | Unit Count | 4.0 Count | ## Product Details - **Material:** Aluminum Oxide Silicon Carbide Plastic Pellets - **Grit Material:** Aluminum Oxide,Silicon Carbide - **Item dimensions L x W x H:** 20.3 x 15.2 x 1 Centimeters - **Brand:** MJR Tumblers - **Grit Type:** Medium ## Images ![Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 1](https://m.media-amazon.com/images/I/61aeQRPy1vL.jpg) ![Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 2](https://m.media-amazon.com/images/I/71SVNiXuCwL.jpg) ![Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 3](https://m.media-amazon.com/images/I/71ENSH8w-mL.jpg) ![Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 4](https://m.media-amazon.com/images/I/61mhoieNFpL.jpg) ![Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 5](https://m.media-amazon.com/images/I/71u-VNXNY6L.jpg) ## Questions & Answers **Q: Can you use this for a 1 lb National Geographic tumbler** A: It should work just fine. This is just the grit and the grit is usable in any tumbler. **Q: Can this grit be used for grinding and polishing rock thin sections?** A: i would think so **Q: After the polish, are the rocks glossy and shiny?** A: They won't be as shiny as you think. The grit polish the rocks so try are smooth but there is a fifth stage in rock polishing called burnishing that you have to do at the end. Search the internet on directions but it involves tumbling them in soap like borax. Also, if you want your rocks to look good you have to get the ceramic filler pellets to even out the tumbles. Plastic doesn't do the trick like ceramic. Filler pellets vs no filler pellets is a big difference on helping the rocks get shiny. ## Customer Reviews ### ⭐⭐⭐⭐ Review *by T***N on 29 March 2026* ### ⭐ Review *by S***D on 3 January 2026* ### ⭐ Review *by J***F on 16 February 2026* ## Frequently Bought Together - Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Results. For 3lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned - UU UNIHOM 3 lbs Bulk Rough Madagascar Stones Mix Large 1" Natural Raw Stones Crystal for Tumbling, Cabbing, Fountain Rocks, Decoration,Polishing, Wire Wrapping, Wicca Reiki Crystal Healing - FORBY 3 lbs Bulk Rough Madagascar Stones Mix - Large 1" Natural Raw Stones Crystal for Tumbling, Cabbing, Fountain Rocks, Decoration,Polishing, Wire Wrapping, Wicca & Reiki Crystal Healing --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/407853171-refill-grit-kit-for-3-lb-rock-tumblers-silicon-carbide](https://www.desertcart.vu/products/407853171-refill-grit-kit-for-3-lb-rock-tumblers-silicon-carbide) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-15*