Weiler 3″ Circular Flared Crimped Wire End Brush features wire fill which has been “pre-flared” to match the working angle of the brush at operating speed and suited for addressing broad and slightly contoured surfaces on steel parts. 1/4″ stem diameter for use on die grinder, drill, drill press and right angle air die grinder. Crimped wire fill which has been “pre-flared” to match the working angle of the brush at operating speed. Suited for addressing broad and slightly contoured surfaces. For use with die grinder and right angle air die grinder power tools. . .