Weiler 1-1/4″ 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. . . .