--- product_id: 492593694 title: "Refill Grit Kit for 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish" brand: "mjr tumblers" price: "4198411₫" currency: VND in_stock: true reviews_count: 5 category: "Mjr Tumblers" url: https://www.desertcart.vn/products/492593694-refill-grit-kit-for-25-lb-rock-tumblers-silicon-carbide store_origin: VN region: Vietnam --- # Premeasured 4-stage silicon carbide grit 12,000 grit sub-micron polish Proud Disabled & Veteran Owned USA brand Refill Grit Kit for 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish **Brand:** mjr tumblers **Price:** 4198411₫ **Availability:** ✅ In Stock ## Summary > ✨ Polish Like a Pro, Tumble Like a Trendsetter! ⚙️ ## Quick Answers - **What is this?** Refill Grit Kit for 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish by mjr tumblers - **How much does it cost?** 4198411₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/492593694-refill-grit-kit-for-25-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 - • **Bonus Expert Guidance:** Free, easy-to-follow instructions with insider tips ensure your best tumble yet. - • **Complete 4-Stage Grit Kit:** Includes coarse, fine, pre-polish, and extreme polish for professional-grade results. - • **Unmatched Polish Precision:** Experience the ultimate 12,000 grit aluminum oxide polish for mirror-like rock finishes. - • **Effortless Multi-Stage Process:** Premeasured grit stages make your 10lb tumbler workflow seamless—just pour and tumble! - • **Veteran-Owned Quality Assurance:** Support a Disabled and Veteran owned American company with every purchase. ## Overview MJR Tumblers Refill Grit Kit delivers a premium 4-stage silicon carbide and exclusive 12,000 grit sub-micron aluminum oxide polish designed for 10lb rock tumblers. This veteran-owned American brand offers premeasured grit quantities for effortless use, ensuring unparalleled rock polishing results with expert instructions included. ## Description MJR Tumblers Refill Grit Kit for 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish : desertcart.ae: Arts & Crafts Review: I purchased a rock tumbler, the first time I uses it I used the grit it came with. I wasn't happy with results. So looked into different grit. I only used the shine grit ( last stage) on the rocks that had already been tumbled with a shine grit and I was surprised at the difference. I haven't used the others but I'm sure the quality is just as good. Review: After 11 days, I received the grit! Polishes rocks nicely! ## Features - COARSE, FINE, PRE-POLISH, AND POLISH KIT: Get the ideal results with this professionally-graded kit, starting from coarse Silicon Carbide Grit for quick stock removal to a finer Aluminum Oxide Polish Grit for a perfect finish. Get the job done quickly without compromising quality. A comprehensive kit that offers everything you need for sharpening and polishing. - QUICK WAY TO MAKE ROCKS SHINE: Get ready to bring your gemstones to life with our rock polisher grit refill pack. Achieve the ultimate shine with our superior-grade Silicon Carbide from Coarse to Pre-polish and Aluminum Oxide for a Finer Polish. Refill your rock polisher with our high-quality grit, enough to give your rocks and gems the sparkle they deserve. Our premium-grade silicon carbide is harder and stays sharper longer, giving you an unbeatable polishing experience. - POLISH INCREDIBLE ROCKS WITH MJR TUMBLERS: You'll have plenty of tumbling to do with MJR Tumblers. We offer a large selection of heavy-duty tumblers, a full range of silicon carbide grit (50, 80, 60/90, 500, 600, 500/600 and 1500), and aluminum oxide (400/600, 1200, and 1500). These can be purchased individually in a weight denomination that best fits your needs, we also have pre-made kits for your specific size tumbler. We also have kits available with or without plastic pellets. - WORKS WITH ANY ROCK TUMBLER: No need to worry about compatibility. Our grit is designed to work with any rock tumbler from any brand, giving you the freedom of choice. Get smooth, polished rocks in no time without compromising on quality or performance! - EASY TUMBLE EXPERIENCE: MJR Tumblers runs on a powerful motor with a leak-resistant rubber barrel that reduces sound, making it 75% quieter than other plastic models, and made to last a long time. Heavy-duty 16-gauge welded steel frame, powder coated. Equipped with heavy-duty stainless steel ball bearings. It also has a quick and easy-to-use heavy-duty rubber cap. Just Pour in the rough stones and grit, then let the machine do its job! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BMP1BJFB | | Age Range Description | Kid | | Brand Name | MJR Tumblers | | Color | Grey | | Customer Reviews | 4.4 4.4 out of 5 stars (989) | | Educational Objective | Develop patience and understanding of materials through a multi-stage polishing process. | | Included Components | Silicon Carbide Aluminum Oxide Media Polish | | Is Assembly Required | No | | Item Dimensions | 20.3 x 15.2 x 5.7 centimeters | | 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 | metal, glass Silicon Carbide | | Model Number | MJR25pk | | Operation Mode | Manual | | Power Source | Manual | | Set Name | 25 lb Tumbler Kit | | Size | 25 lb | | 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 ![Refill Grit Kit for 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 1](https://m.media-amazon.com/images/I/61aeQRPy1vL.jpg) ![Refill Grit Kit for 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 2](https://m.media-amazon.com/images/I/71SVNiXuCwL.jpg) ![Refill Grit Kit for 25 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 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 4](https://m.media-amazon.com/images/I/61mhoieNFpL.jpg) ![Refill Grit Kit for 25 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 5](https://m.media-amazon.com/images/I/71u-VNXNY6L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***E on 30 January 2025* I purchased a rock tumbler, the first time I uses it I used the grit it came with. I wasn't happy with results. So looked into different grit. I only used the shine grit ( last stage) on the rocks that had already been tumbled with a shine grit and I was surprised at the difference. I haven't used the others but I'm sure the quality is just as good. ### ⭐⭐⭐⭐ Review *by T***N on 29 March 2026* After 11 days, I received the grit! Polishes rocks nicely! ### ⭐⭐⭐⭐⭐ Review *by A***Y on 27 August 2024* I'm new to rock tumbling, I've used a few different polishing grits and this is the best one so far. I ran this polish cycle for 7 days and am happy with the results. ## 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 --- ## 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.vn/products/492593694-refill-grit-kit-for-25-lb-rock-tumblers-silicon-carbide](https://www.desertcart.vn/products/492593694-refill-grit-kit-for-25-lb-rock-tumblers-silicon-carbide) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-21*