Patent ID: 7322779

Claim:
An interface between two parts of a metal-cutting tool, with a retainer comprising a recess, and an exchangeable tool head, comprising an appendix, which can be inserted into the recess, the exchangeable tool head is arranged in axial prolongation to the retainer, and with a fixture to fix the exchangeable tool head on the retainer, characterized in that the fixture comprises a tension-bolt and an eccentric cam element, wherein the eccentric cam element is operable at a peripheral area of the retainer, and that the tension-bolt comprises a pull stud, which can be inserted into the eccentric cam element, comprising a first clamping surface, and that the eccentric cam element comprises a second clamping surface, wherein a distance between the second clamping surface to a rotary axis of the eccentric cam element varies, wherein the first clamping surface of the tension-bolt is formed convex and the second clamping surface of the eccentric cam element is formed concave, and wherein the eccentric cam element includes stops restricting an amount of rotational movement of the eccentric cam element therebetween.