Makita PK5011CX1 5" Electronic Stone Polisher with Splash Guard Powerful 11 AMP motor delivers more output for the most demanding applications Variable speed control dial (2,000 - 5,500) enables user to match the speed to the application Adjustable water flow valve is conveniently located Water supply tube is directed through the handle for maneuverability and comfort Four water outlets around the arbor efficiently distributes water to the pad for increased dust containment