Description: 3 inch Diamond Polishing Pad for concrete granite marble stone polishing. Available Grits:50,100,200,400,800,1500,3000.Provide color coded to easily identify polishing pads' grit. New pattern, Special material,High temperature resistant. Work very well on all kind of section - Demi, Full Bullnose, Bevel, Ogee and sections with similar curves. Good for dry use,no need to add water.Neve use it with high speed grinder. Specification: Material: Diamond Size: Inner diameter:10mm/0.39inch; Outer diameter:80mm/3.14inch; Thickness:0.9mm/0.04inch Type: 123J Package Includes: 1 Piece Diamond Dry Polishing Pad (6 Pack) Note: According to the roughness of the marble, the corresponding particle size number is selected for grinding. Cleaning the marble surface is required after each particle size is polished to avoid the scratching of the corundum in the next grinding. In order to ensure the grinding effect, it is recommended that the grinding track should cross horizontally and vertically. After grit 3000, the brightness can reach 90-100 degrees or more after grinding.