Check the listing for details. 4" inch Grit 3000 Diamond Grinding Disc Wheels Super Fine Coated Flat Lap Disk. Color: Silver, Condition: New. Listed at 10.99 USD. JINGLING 4" inch Diamond Coated Flat Lap Disk Grinding Wheel Grit 3000 Very FineProduct Specification: Product Name: 4 inch Diamond Grinding Disc, Diamond Coated Grinding Wheel, Flat Lap DiskOutside diameter: 4" inch (100mm)Arbor hole: 5/8" (16mm)Thickness: 1.1 mmGrit: 3000 Grit type: Very FineDiamond coating Density: Perfectly highDiamond coating surface area: almost 90%, only one side is coated diamondTotal Quantity: 1 PieceWet use recommendedSuitable 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 diameter flat lap wheels have a high density quality diamond coating. They are absolutely flat and parallel to meet the most exacting faceting requirements. Quick Tips 1. Recommended for rough and fine grinding on faceting material plus general lapidary grinding when precision is required. 2. All our flat laps wheels have a 5/8" arbor hole for Angle Grinder. Also Available in Grits 60, 80, 100, 120, 150, 180, 240, 320, 400, 500, 600, 800, 1000, 1200, 1500, 1800, 2000, 3000. We will send out your order within 1-2 days after payment has been received and cleared. Please let us know if you are looking for other accessories or hardware.