--- product_id: 83151282 title: "60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 5 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply" brand: "mjr tumblers" price: "R2402" currency: ZAR in_stock: true category: "Mjr Tumblers" url: https://www.desertcart.co.za/products/83151282-60-90-grit-silicon-carbide-rock-tumbler-grit-extra-coarse store_origin: ZA region: South Africa --- # Works with rotary & vibratory tumblers Aggressive cutting speeds up polishing prep 60/90 grit extra coarse for rapid shaping 60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 5 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply **Brand:** mjr tumblers **Price:** R2402 **Availability:** ✅ In Stock ## Summary > ⚡ Shape. Smooth. Shine. Start strong with MJR Tumblers! ## Quick Answers - **What is this?** 60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 5 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply by mjr tumblers - **How much does it cost?** R2402 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/83151282-60-90-grit-silicon-carbide-rock-tumbler-grit-extra-coarse) ## 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 - • **Speed Meets Precision:** Extra coarse silicon carbide ensures aggressive material removal without sacrificing control. - • **Universal Compatibility:** Seamlessly fits both rotary and vibratory tumblers to keep your workflow smooth. - • **Versatile for Every Project:** Perfect for rocks, minerals, and sea glass—shape and texture with confidence. - • **Trusted American Craftsmanship:** Proudly USA owned, veteran-run brand delivering consistent, high-quality grit. - • **Kickstart Your Polishing Journey:** Stage 1 grit designed to break down rough edges fast and prep stones flawlessly. ## Overview MJR Tumblers 60/90 Grit Silicon Carbide is a premium, extra coarse Stage 1 polishing grit designed for rapid shaping and surface preparation of rocks, minerals, and sea glass. Compatible with both rotary and vibratory tumblers, this 5 lb pack delivers aggressive cutting power to accelerate your lapidary projects, backed by a trusted USA veteran-owned brand. ## Description MJR Tumblers 60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 5 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply: desertcart.com: Industrial & Scientific ## Features - STAGE 1 EXTRA COARSE GRIT FOR INITIAL SHAPING: This 60/90 grit silicon carbide is designed for the first stage of rock tumbling, helping break down rough edges and shape stones. Ideal for starting the polishing process by removing surface imperfections and preparing rocks for finer stages. - AGGRESSIVE CUTTING FOR FASTER MATERIAL REMOVAL: The extra coarse grit provides strong abrasive action for shaping and smoothing hard materials. Suitable for reducing rough surfaces efficiently and preparing stones for the next stages of polishing. - COMPATIBLE WITH ROTARY & VIBRATORY TUMBLERS: Works with most rock tumblers, including rotary and vibratory machines. A versatile option for maintaining your rock polishing workflow or restocking Stage 1 grit. - IDEAL FOR ROCKS, MINERALS & SEA GLASS PROJECTS: Can be used on stones, minerals, and glass materials. Also suitable for creating textured finishes or shaping materials before finer polishing stages. - USA OWNED BRAND WITH TRUSTED QUALITY: 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 | B07F9GJTW8 | | Best Sellers Rank | #9,702 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Tumbling Media | | Brand | MJR Tumblers | | Brand Name | MJR Tumblers | | Compatible Material | Premium Silicon Carbide | | Customer Reviews | 4.7 out of 5 stars 682 Reviews | | Grit Material | Premium Silicon Carbide | | Grit Material Type | Premium Silicon Carbide | | Grit Number | 60 | | Grit Type | Coarse | | Item Weight | 5 pounds | | Manufacturer | MJR Tumblers | | Material | Premium Silicon Carbide | | Material Type | Premium Silicon Carbide | | Number of Packs | 1 | | Part Number | BOT | | Set Name | Stage 1 | ## Images ![60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 5 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply - Image 1](https://m.media-amazon.com/images/I/61AQ9A6OpdL.jpg) ![60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 5 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply - Image 2](https://m.media-amazon.com/images/I/81aLpyQTGhL.jpg) ![60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 5 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply - Image 3](https://m.media-amazon.com/images/I/61K4Iy8sPVL.jpg) ![60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 5 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply - Image 4](https://m.media-amazon.com/images/I/710XzabcUsL.jpg) ![60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 5 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply - Image 5](https://m.media-amazon.com/images/I/61jppoZcTaL.jpg) ## Available Options This product comes in different **Size, Style** options. --- ## 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.co.za/products/83151282-60-90-grit-silicon-carbide-rock-tumbler-grit-extra-coarse](https://www.desertcart.co.za/products/83151282-60-90-grit-silicon-carbide-rock-tumbler-grit-extra-coarse) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-25*