... for floor. After rough and fine grinding and polishing with the polishing pads , the floor surface will show a mirror ... smoothly ,quick speed and long life. NameSpecificationGritDiamond Floor Polishing PadDiameter=4"(100mm) Inner hole=47mmThickness=7mm50#100#200 ... productsPolishing Pads,Cutting Blade, Core Drill Bits, Diamond Cup wheel, Finger Bits, Stone Processing Machinery,etc.3.QualityWe believe ...