Toolholder for the connection of a drilling unit with a hollow diamond drilling tool

摘要

Device (20) for receiving and securing a tool (2; Fig. 1), in particular a drill bit on a machine tool (1; Fig. 1), for example a core drill comprising an output shaft (6) for transmitting a in the machine tool (1 ) generated torque on the tool (2); and a cap nut (22) positioned around the output shaft (6) for releasably connecting the output shaft (6) to a terminal end (9) of the tool (2). The output shaft (6) includes a retaining ring (25) and the union nut (22) includes a stopper disc (26) and a damping element (27), wherein the stopper disc (26) between the locking ring (25) and the damping element (27) is positioned ,