--- product_id: 407853171 title: "Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish" brand: "mjr tumblers" price: "€ 67.15" currency: EUR in_stock: true category: "Mjr Tumblers" url: https://www.desertcart.gr/products/407853171-refill-grit-kit-for-3-lb-rock-tumblers-silicon-carbide store_origin: GR region: Greece --- # Ultra-fine 12,000 grit aluminum oxide polish Precision graded silicon carbide grit Proudly USA made, veteran-owned brand Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish **Brand:** mjr tumblers **Price:** € 67.15 **Availability:** ✅ In Stock ## Summary > ✨ Elevate your rock tumbling game to pro-level polish perfection! ## 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?** € 67.15 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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 - • **Multi-Stage Grit System:** Four-step polishing for flawless rock finishes - • **Extreme 12,000 Grit Polish:** Sub-micron aluminum oxide for mirror-like shine - • **Perfect Fit for 3 LB Tumblers:** Tailored quantities ensure no waste, max efficiency - • **Premium Silicon Carbide Media:** Optimized 60/90, 120/220, and 500/600 grit blends for progressive smoothing - • **Trusted Veteran-Owned Quality:** Support a brand with integrity and American craftsmanship ## Overview This MJR Tumblers Refill Grit Kit is engineered for 3 lb rock tumblers, featuring a precise four-step system with graded silicon carbide grit and a premium 12,000 grit aluminum oxide polish. Designed for progressive smoothing and ultimate shine, it’s a veteran-owned, USA-made solution that guarantees professional-grade results every time. ## 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 | #417,023 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #1,201 in Household Cleaning Metal Polish | | Brand Name | MJR Tumblers | | Compatible Material | Aluminum Oxide; Silicon Carbide | | Customer Reviews | 4.3 4.3 out of 5 stars (487) | | 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 | 254 g | | Manufacturer | MJR Tumblers | | 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 - **Brand:** MJR Tumblers - **Grit Material:** Aluminum Oxide,Silicon Carbide - **Grit Type:** Medium - **Item dimensions L x W x H:** 20.3 x 15.2 x 1 Centimeters - **Material:** Aluminum Oxide Silicon Carbide Plastic Pellets ## 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) ## 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. ## 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.gr/products/407853171-refill-grit-kit-for-3-lb-rock-tumblers-silicon-carbide](https://www.desertcart.gr/products/407853171-refill-grit-kit-for-3-lb-rock-tumblers-silicon-carbide) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-19*