This tool is required when polishing with diamond tools that require the use of water and low RPM's This unit is equipped with an 800 watt 8 amp moto... Wet Polisher Grinder 2" Stone Concrete 4cm Full Bullnose DiamondPads V50WVPOLSET ... Concrete Floor Grinding. Concrete Products. Diamond Band Saw Blades. SECCO Wet Po... V40 Full Bullnose Wet ...