Compact and lightweight, yet fast and powerful. LED work light is ideal for dark and enclosed areas. Temperature overload function which shuts unit down automatically if it overheats. Reverse function. No-load speed of 2500 rpm. 6 mm keyless chuck. WORX 20 V lithium batteries fit a wide range of WORX cordless lawn and workshop tools. Charge time pf 3 to 5 hrs. Weighs only 2.64 lb.