Wet grinding pads 1.Diameter:3"(2.5mm thick) or 4 ... 150#,300#,500#,800#,1000#,1500#,2000#,3000# DescriptionDiameterThicknessGritWet grinding pads3"2.5mm50#,100#,150#,300#,500#,800#,1000#,1500 ... #,2000#,3000#4"3mmWet grinding pads is for curved surface and the small plane ... grains with resinoid.2)Supply a better performance in grinding stone with polishing effect to get high gloss in ...