The brush members extend through {HEAD ~ the slot} with a first end of the brush arranged in the tube and {TAIL ~ a second end} contacting the workpiece 
with
The brush members extend through { HEAD ~ the slot } with a first end of the brush arranged in the tube and { TAIL ~ a second end } contacting the workpiece
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH