Patent ID: 7363692

Claim:
A method for the final machining of a hole in a workpiece involving metal removal comprising: providing a tool for the final machining of workpieces involving metal removal comprising: a preliminary machining stage including at least one cutter for preliminary machining with a geometrically defined cutting edge; a final machining stage including at least one cutter for final machining with a geometrically defined cutting edge; an interface located between the preliminary machining stage and the final machining stage provided with a first flat surface and a second flat surface which are located on the preliminary machining stage and the final machining stage, respectively; and a device ensuring the coaxiality of the preliminary machining stage and the final machining stage to each other for the coaxial alignment of the stages, the device having a tapered recess and a tapered shaft which engages the tapered recess; wherein the preliminary and final machining are performed by the preliminary and final machining stages, respectively, which engage the surface of the workpiece to be machined successively in one operating step.