means for detecting a wear position of the presetting device after use of the manual pliers, when the press elements in the actuated state of the manual pliers are brought into {HEAD ~ a position} that has {TAIL ~ the reference degree} of pressing, by adjusting the presetting device; and 
means for detecting a wear position of the presetting device after use of the manual pliers , when the press elements in the actuated state of the manual pliers are brought into { HEAD ~ a position } that has { TAIL ~ the reference degree } of pressing , by adjusting the presetting device ; and
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 OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH