Patent ID: 6889884

Claim:
A setting tool, comprising an axially displaceable drive piston ( 4 ) having a sealing element ( 5 ) and a stem ( 6 ); a piston guide ( 1 ) for guiding the drive piston ( 4 ); a bolt guide ( 2 ) adjoining the piston guide ( 1 ) at a setting direction side of the piston guide ( 1 ); and a buffer member ( 8 ) located in a guide bore ( 12 ) of the piston guide ( 1 ) and extending between the sealing element ( 5 ) of the drive piston ( 4 ) and the bolt guide ( 2 ) and surrounding the drive piston stem ( 6 ), the guide bore ( 12 ) of the piston guide ( 1 ) having at least one stop shoulder ( 7 ) having a stop surface facing in a setting direction, and the buffer member ( 8 ) having at least one mating shoulder ( 10 ) having a facing in a direction opposite the setting direction, mating surface cooperating with the stop shoulder ( 7 ) of the guide bore ( 12 ), wherein the bolt guide ( 2 ) has a receiving region ( 16 ) provided with an undercut ( 3 ), and the buffer member ( 8 ) has an end region ( 13 ) facing in the setting direction and spaced from the mating shoulder ( 10 ), releasably connected with the bolt guide ( 2 ), and formed as a radial widening extending into the receiving region ( 16 ) of the bolt guide ( 2 ) and formlockingly engaging in the undercut ( 3 ).