{TAIL ~ The brush members} are adjustably arranged in a housing such that the angle of the brush member relative to {HEAD ~ the workpiece} can be varied 
{ TAIL ~ The brush members } are adjustably arranged in a housing such that the angle of the brush member relative to { HEAD ~ the workpiece } can be varied
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH