The BO5031 is a 125mm variable speed palm sander, suitable for a range of sanding activities from paint removal to fine finishing. It has a 2.8mm orbit and the electronic variable speed ensures constant power once the speed is selected. A comfortable top grip with rubber insert for extra control. Smooth and fast sanding with 12,000 OPM. Large random orbit action for fast and super smooth sanding Pad control system for controlled pad speed upon start-up. Efficient through-the-pad dust collection system for a cleaner environment. Dust-sealed switch minimizes contamination. Uses quick change 125mm / 5" (8-hole) hook-and-loop abrasive paper. Oversized sealed ball bearing construction for longer tool life. Double insulated.