--- product_id: 39719556 title: "4\" inch 100mm Diamond Flat Lap Disc Coated Grinding Disk Grit 320 Medium" brand: "jingling" price: "€ 20.52" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.pt/products/39719556-4-inch-100mm-diamond-flat-lap-disc-coated-grinding-disk store_origin: PT region: Portugal --- # 4" diameter 5/8" arbor hole 1.1mm thickness 4" inch 100mm Diamond Flat Lap Disc Coated Grinding Disk Grit 320 Medium **Brand:** jingling **Price:** € 20.52 **Availability:** ✅ In Stock ## Summary > 🔧 Grind Like a Pro with JINGLING! ## Quick Answers - **What is this?** 4" inch 100mm Diamond Flat Lap Disc Coated Grinding Disk Grit 320 Medium by jingling - **How much does it cost?** € 20.52 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/39719556-4-inch-100mm-diamond-flat-lap-disc-coated-grinding-disk) ## Best For - jingling enthusiasts ## Why This Product - Trusted jingling brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Grinding:** Achieve flawless finishes on gemstones and glass with grit 320. - • **Durable Construction:** Built to last, ensuring consistent performance for all your grinding needs. - • **Flat & Parallel Design:** Engineered to meet the highest standards in faceting and lapidary work. - • **Multi-Material Mastery:** Perfect for grinding a variety of materials including jewelry, tiles, and more. - • **Versatile Compatibility:** Designed for use with angle grinders, making it a must-have for any toolkit. ## Overview The JINGLING 4" Diamond Flat Lap Disc is a high-performance grinding tool designed for precision work on various materials, including gemstones, glass, and tiles. With a grit of 320, a 5/8" arbor hole, and a thickness of 1.1mm, this disc is perfect for both professional and hobbyist applications, ensuring flat and parallel surfaces for the most demanding projects. ## Description JINGLING 4" inch 100mm Diamond Flat Lap Disc Grinding Disk Arbor 5/8 Grit 320 Medium Product Name: 4 inch diamond grinding disc, 100mm grinding wheels, Flat lap grinding disk Outside diameter :4" inch (100mm) Arbor hole : 5/8" (16mm) Thickness : 1.1 mm Grit : 320 Grit type: Medium Diamond coating density : Perfectly high Diamond coating surface area : almost 95%, only one side is coated diamond Total Quantity: 1 Piece It is recommended to add water during the grinding process Suitable to grinding gemstone, jewelry, glass, rock, carving knife, etc. These diamond discs are one of the finest discs manufactured for hobby, lapidary, glass applications The diamond flat lap wheels have a high density quality diamond coating The 4" lap discs are absolutely flat and parallel to meet the most exacting faceting requirements When used as part of a multi-stage grinding process it's easy to create smooth finished edges with a professional look Quick Tips 1. Recommended for rough grinding on faceting material plus general lapidary grinding when precision is required 2. All diamond flat laps wheels have a 5/8" arbor hole, can be used in the angle grinder Also Available in Grits 60, 80, 100, 120, 150, 180, 240, 320, 400, 500, 600, 800, 1000, 1200, 1500, 1800, 2000, 3000 ## Features - Outside diameter: 4" inch(100mm); Arbor hole: 5/8" (16mm); Thickness: 1.1mm; Grit: 320 Medium - Suitable to grinding gemstone, jewelry, carving knife, glass, rock, tile, etc - All diamond flat laps wheels have a 5/8" arbor hole, can be used in the angle grinder - Absolutely flat and parallel to meet the most exacting faceting requirements - Recommended for grinding on faceting material plus lapidary grinding when precision is required ## Product Details - **Grit Material:** Diamond - **Product Dimensions:** 4"L x 4"W - **Brand:** JINGLING - **Compatible Devices:** Bench Grinder - **Grit Type:** Medium ## Images ![4" inch 100mm Diamond Flat Lap Disc Coated Grinding Disk Grit 320 Medium - Image 1](https://m.media-amazon.com/images/I/91hrmezW8+L.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: will this fit a 4-1/2 angle grinder** A: It has a 5/8" hole so as long as your grinder has a 5/8" pilot (almost all of them do), it'll fit fine. I've put it in my Milwaukee 4.5" angle grinder with no issues. **Q: Is the diamond media embedded or is it stuck on with glue &/or on a secondary a sheet?** A: Electroplated, coated, plated. Material of the diamond grinding disc: Diamond, steel plate. The diamond is plated to the surface of the steel plate, The diamond grinding disc coated monocrystalline (single crystal diamond). Diamond coating surface area : almost 95%,only one side is coated diamond **Q: What is maximum RPM for this grinder disc?** A: Dear Customer,Thank you for your inquiry.Maximum RPM for this grinder disc 3800-5000 RPM.Should you have any queries, please contact me directly.Best Regards! **Q: what grit would you use to sharpen carbide table saw blades?** A: 400-600 ## Customer Reviews ### ⭐⭐⭐⭐⭐ use for tungsten *by D***. on July 17, 2025* works great on my little 3 ich bench grinder from harbor tools sharpens my tungsten perfectly ### ⭐⭐⭐⭐⭐ Good Product! *by B***G on June 18, 2025* For the cost they do the work. ### ⭐⭐⭐⭐⭐ Durable *by M***T on April 26, 2025* Works great and hasn’t worn out yet. Used it allot welding stainless ## Frequently Bought Together - JINGLING 4" inch 100mm Diamond Flat Lap Disc Coated Grinding Disk Grit 320 Medium - Weldmonger TIG Finger Heat Shield, Pocket Size, Fiberglass, Unisex - Caiman Premium Goat Grain TIG/Multi-Task Welding Gloves, Split Cowhide Back, 4-Inch Extended Cuff, White/Gold, Large (1540-5) --- ## 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.pt/products/39719556-4-inch-100mm-diamond-flat-lap-disc-coated-grinding-disk](https://www.desertcart.pt/products/39719556-4-inch-100mm-diamond-flat-lap-disc-coated-grinding-disk) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-09*