This 18V random-orbit sander features a well-balanced ergonomic palm grip, which allows your hand to be closest to the work material to avoid tilting and pressing down, for best results. The Bosch GEX18V-5 Brushless 5" Random-Orbit Sander has an easy-to-reach on/off switch that offers intuitive operation. It has a vibration-dampening element to help minimize user fatigue. It has a powerful 18V brushless motor, which delivers stock removal similar to a corded sander. The speed selector delivers best results in different materials and applications. The sander has a 5" eight-hole sanding pad, which provides optimal dust collection when the sander is attached to a vacuum or a dust bag. The dust pad is ideal for both flat and concave/convex surfaces. The included dust bag allows mobile dust collection, while the tool has an interface for vacuum hose attachment. It also has soft-start technology, constant speed and a hook-and-loop backing pad. The sander has a compact shape with close-to-the-workpiece design for control in hard-to-reach areas. The kit features a CORE18V 4.0 Ah Compact Battery, allowing you to keep the power and lose the weight of a normal battery.