... stone ,all kinds of natural stone arc ,line ,edge grinding ,fine grinding ,polishing padFeatures:1.Generally used for the line, chamfer ... stone floor , liquid penetrant or hardener and densifier for floor. After rough and fine grinding and polishing with the polishing pads , the floor ... pad10",13",17"Softer than the black pad,and it's for dewaxing and cleaningRed pad10",13",17"It's for cleaningStrong ...