Patent ID: 7661484

Claim:
A device for a drilling and/or percussive hammer having a tool receptacle for holding a tool and for transmitting a torque to the tool, the tool receptacle comprising: an essentially hollow cylindrical recess that forms the tool holder, having on an end surface an introduction opening through which an insertion end of the tool can be introduced, and having on an opposite end surface an impact opening through which an impact action can be applied to an end surface of the insertion end of the tool, at least one web-shaped rotational driver formed on an inner side of the tool holder, and additionally, at least one locking element that, in a locked state, is held in a predetermined radial position, and, in an unlocked state, is capable of movement at least radially out of the predetermined radial position, wherein a stop surface is provided on an inner wall of the tool holder in the area of the impact opening, the stop surface acting in the axial direction of the tool holder such that the stop surface limits axial travel of the tool into the tool holder when the end surface of the tool abuts the stop surface.