Check the listing for details. 6" inch Diamond coated Flat Lap Disc Lapidary lapping disk 1800 Fine. Condition: New. Listed at 16.50 USD. 6 inch Quality Electroplated Diamond coated Flat Lap Disk Grinding Disc wheel Grit 1800 PRODUCT DETAILS: Outside diameter : 6 inch (150mm) Arbor hole : 1/2" (12.7mm) Thickness : 3/64" (1.2mm) Grit:1800 Fine Diamond coating Density : Prefectly high Diamond coating surface area : almost 95%,only one side is coated diamond Wet use recommended. We have Grit 60, 80, 100, 120, 150, 240, 320, 400,500, 600, 800, 1000, 1200,1500, 1800,2000 available. Our 6" diameter flat lap wheels have a high density quality diamond coating and are recommended for rough and fine grinding on faceting material plus general lapidary grinding when precision is required All our flat laps wheels have a 1/2" arbor hole and are intended to be mechanically clamped to a Master Lap. We will send out your order within 1-2 days after payment has been received and cleared. Welcome Visit My eBay Store: Zhou Zhou tools