Provision of {HEAD ~ a planar support surface} in {TAIL ~ connection} with the central arrangement of the polygon results in a more secure arrest of the tool, leading to a firm seating on the shock absorber closure screw 
Provision of { HEAD ~ a planar support surface } in { TAIL ~ connection } with the central arrangement of the polygon results in a more secure arrest of the tool , leading to a firm seating on the shock absorber closure screw
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH OTH