Patent ID: 6981474

Claim:
A setting tool for driving in fastening elements, comprising: a piston guide ( 13 ) having hollow chamber ( 14 ); a setting piston ( 20 ) axially displaceably arranged in the hollow chamber ( 14 ) of the piston guide ( 13 ) and having a piston head ( 23 ), a piston stem ( 21 ), and a piston band ( 22 ) having a maximal outer diameter (DB); and a piston stop device ( 30 ) for the setting piston ( 20 ) and arranged in a setting direction end region of the hollow chamber ( 14 ), the piston stop device ( 30 ) having a damping element ( 31 ) supported against a stop ( 15 ), and a stop member ( 32 ) adjoining the damping element ( 31 ) in a direction of the hollow chamber ( 14 ) and operationally connectable with the piston band ( 22 ), the stop member ( 32 ) having a cylindrical bushing ( 33 ) for the piston stem ( 21 ), the bushing ( 33 ) having an inner diameter (DS) that amounts to from 70% to 90% of a size of the maximal outer diameter (DB) of the piston band, the piston band ( 22 ) having a conical surface ( 24 ) engageable with inner surface of the bushing ( 33 ), wherein the piston band ( 22 ) has a hardness from 50 to 60 HRC, and the stop member ( 32 ) has a hardness in a range from 50% to 70% of the hardness of the piston band ( 22 ) with an upper limit of 38 HRC.