Check the listing for details. 4Pcs 6" inch Grit 60-3000 Diamond Grinding Discs Set Flat Lap Disk lapping Wheel. Color: Silver, Condition: New. Listed at 49.99 USD. JINGLING 4Pcs 6" inch Diamond Coated Flat Lap Disk Grinding Discs Set Grit 60-3000 Product Specification: Outer diameter : 6" inch (150mm) Arbor hole : 1/2" (12.7mm) Thickness : 1-1.2 mm Grit : 60-3000 Diamond coating Density: Perfectly high Diamond coating surface area : almost 95%, only one side is coated diamond Quantity: Total 4 Pcs (each grit one piece) Wet use recommended Suitable to grinding jewelry, glass, rock, ceramic, 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. Use this fine grit diamond lap pad to smooth and shape pieces and create polished flat surfaces When used as part of a multi-stage grinding and polishing process it's easy to create smooth finished edges with a professional look. 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 1/2" arbor hole and are intended to be mechanically clamped to a Master Lap. 3. The laps are made with 1mm thick steel plate that has been machined true and flat.The lap is stiff enough to be used as is, but we recommend with the use of 6 in Aluminum Master Lap. Also Available in Grits 60, 80, 100, 120, 150, 180, 240, 320, 400, 600, 800,1000, 1200, 1500, 1800, 2000, 3000. Regular Air postage from China to Worldwide and takes 10-30 days delivery to your home We will send out your order within 1-2 days after payment has been received and cleared.