Patent ID: 7556458

Claim:
A tool for machine tools having a shank and a cutting-edge carrier, which is arranged removably at an end side of the shank, and at one end has a transverse rib, which projects beyond a flat surface, can be introduced into a rib receiving part, delimited by a planar mating surface, of the shank and can be clamped fixedly in place by tightening screws, and a centering pin, which can be fitted into a central locating hole in the shank and projects axially centrally beyond the transverse rib, the cutting-edge carrier and the shank each having two chip removal grooves which merge into one another and are helical, wherein the receiving part has two driver parts, which are separated from one another by a central gap, are arranged with double rotational symmetry with respect to one another about the tool axis, project in a substantially axially parallel manner beyond the mating surface of the shank and each have an axially parallel driver surface, acting in the direction of rotation of the shank, for receiving an adjacent transverse rib part of the cutting edge carrier, wherein the receiving part includes a concave chip removal surface, which adjoins the driver surface at an acute angle and is designed as part of the chip removal flute, and a part-cylindrical outer surface, which connects the driver surface and the chip removal surface to one another on the radially outer side of the shank and is concentric with respect to the tool axis, wherein the transverse rib part of the cutting-edge carrier, on its side remote from the driver surface of the one driver part of the shank, includes a concave chip removal surface, which adjoins the concave chip removal surface of the other driver part, is complemented by the other driver part of the shank and is designed as part of the chip removal flute, and wherein the tightening screws engage, through in each case one transverse bore in each one of the driver parts of the shank, into a threaded bore in the adjacent transverse rib part of the cutting-edge carrier.