{HEAD ~ A reference position} of the presetting device is measured prior to {TAIL ~ a first use} of the manual pliers, this measurement involving actuating the manual pliers 
is measured prior to
{ HEAD ~ A reference position } of the presetting device is measured prior to { TAIL ~ a first use } of the manual pliers , this measurement involving actuating the manual pliers
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH