... finish every time it makes contact with granite, marble, limestone and more. This polisher can tackle the most demanding polishing, sanding ... applications.·   ; Includes GFCI, attached water feed, hook and loop pad and ground fault interrupter.·   ; Grits 50, 100, 200, 400, ... speed 500 to 4,500 Rpm.· Labyrinth construction seals motor and bearings from dust.· Gardena end connector included.