ITEM NAME:6 Inch Grit 600 Diamond Coated Flat Lap Wheel Lapidary Grinding Polishing D D3W3 6 Inch Grit 600 Diamond Coated Flat Lap Wheel Lapidary Grinding Polishing D D3W3 High hardness, sharp grinding, wear resistance, can be used repeatedly. Convenient to use, dry grind or water grind is okay, rinse after use,then dry it. Suitable to grind and polish jewelry, glass, jade,rock, etc. Color:silver Material:diamond Diameter:150mm Thickness : 1mm Arbor hole : 12.7mm Grit : 600 Package Includes: 1 x Grit 600 6 inch Diamond Flat Lap wheel Note: Add right amount of water when grinding operation, help to heat dissipation and prolong the service life of the flat lap wheel Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.