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