Designed for scrubbing and cleaning a range of surfaces such as alloys, car seats, carpets, tiles and other surfaces. Seven different shapes and sizes of brush for optional variety. High quality PP bristles for tough scrubbing and cleaning. Designed to fit any standard sized drill chuck. Drill brushes fixed to a 6.35mm (1/4") shank. 150mm Quick chuck magnetic bit holder to allow for greater extension into hard-to-reach areas.