The channel has {HEAD ~ an entrance opening} in {TAIL ~ a direction} radially of the end portion which is opposite the direction in which the handle portion is angled from the end portion 
The channel has { HEAD ~ an entrance opening } in { TAIL ~ a direction } radially of the end portion which is opposite the direction in which the handle portion is angled from the end portion
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH