Sinhoff, V.V.SinhoffBolten, H.P.H.P.Bolten2022-03-082022-03-081997https://publica.fraunhofer.de/handle/publica/303822The invention relates to a process and a tool for the production of drill holes, whereby, during a feed movement of the tool with the first cutting parameters, the general production and a rough grinding preparation of the drill hole are performed by a first cutting facility provided at the front end of the tool and, during a return movement of the tool, a finish grinding machining of the drill hole takes place by a radially adjustable second cutting facility provided at the circumference of the tool with the second cutting parameters different from the first cutting parameters. The two cutting facilities can have a geometrically undefined cutting geometry.de608670658patent1994-4418605