Liberon Drill Brush is a circular brush attachment made from natural bristles that absorb wax and make it ideal for buffing large surfaces such as doors and panels etc. Fitting all standard mains powered drills it has an optimum operating speed of 800 ? 1000 rpm and requires a maximum 10 mm chuck. - Ideal for buffing large surfaces. - Fits all standard mains powered drills. - Made from natural bristle.