... :2.5mm 3.Soft and Flexible 4.Floor machine(4000-8000RPM) Dry concrete polishing padsIntroduction:Dry pads with high diamond concentration and a ... market. DRA dry pads are perfect for all kinds of concrete and floor. They also can be used by a little ... scrach.4,Suitable for different RPM Application:Concret or floor Concrete Polishing PadItem NODiameterThicknessGrit DC-CDPP0180mm(3”)2.5mm 50#,100#,200 ...