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