Method for multistep machining a cutting tool including at least one rough machining step and at least one fine machining step, comprising the steps: a) Defining a data set of the cutting tool comprising target geometries of the cutting tool, parameters of materials of the cutting tool and parameters of process operations for machining the workpiece into the cutting tool; b) Positioning the workpiece in a machining device for the at least one rough machining step; c) Determining a data set of the positioned workpiece to be roughly machined by a measuring method comprising actual geometries of shape, positional and orientation data of the positioned workpiece; d) Defining at least one machining program for the at least one rough machining step based on the defined data set of the cutting tool in relation to the determined data set of the positioned workpiece; e) Subjecting the workpiece to the at least one machining program for the at least one rough machining step; f) Measuring the workpiece after the at least one rough machining step by measuring means to determine a second data set of the roughly machined workpiece comprising at least actual geometries of the shape of workpiece; g) Processing the second data set of the roughly machined workpiece to instantiate an actual model of the roughly machined workpiece comprising the at least actual geometries of the shape of the workpiece; h) Transferring the roughly machined workpiece to another machining device for the at least one fine machining step and determining a data set of the positioned roughly machined workpiece by a measuring method comprising shape, positional and orientation data of the positioned roughly machined workpiece; i) Defining at least one machining program for the at least one fine machining step by associating the defined data set of the cutting tool and the actual model of the roughly machined workpiece or an actual model of the finely machined workpiece comprising at least actual geometries of the shape of the workpiece; j) Subjecting the workpiece to the at least one machining program for the at least one fine machining step; k) Measuring the workpiece after the at least one fine machining step by measuring means to determine a second data set of the finely machined workpiece comprising at least actual geometries of the shape of the workpiece; l) Processing the second data set of the finely machined workpiece to instantiate the actual model of the finely machined workpiece comprising at least actual geometries of the shape of the workpiece; m) Repeating steps i) to I) until the workpiece takes on the shape of the target geometries of the cutting tool. a) Defining a data set of the cutting tool comprising target geometries of the cutting tool, parameters of materials of the cutting tool and parameters of process operations for machining the workpiece into the cutting tool; b) Positioning the workpiece in a machining device for the at least one rough machining step; c) Determining a data set of the positioned workpiece to be roughly machined by a measuring method comprising actual geometries of shape, positional and orientation data of the positioned workpiece; d) Defining at least one machining program for the at least one rough machining step based on the defined data set of the cutting tool in relation to the determined data set of the positioned workpiece; e) Subjecting the workpiece to the at least one machining program for the at least one rough machining step; f) Measuring the workpiece after the at least one rough machining step by measuring means to determine a second data set of the roughly machined workpiece comprising at least actual geometries of the shape of workpiece; g) Processing the second data set of the roughly machined workpiece to instantiate an actual model of the roughly machined workpiece comprising the at least actual geometries of the shape of the workpiece; h) Transferring the roughly machined workpiece to another machining device for the at least one fine machining step and determining a data set of the positioned roughly machined workpiece by a measuring method comprising shape, positional and orientation data of the positioned roughly machined workpiece; i) Defining at least one machining program for the at least one fine machining step by associating the defined data set of the cutting tool and the actual model of the roughly machined workpiece or an actual model of the finely machined workpiece comprising at least actual geometries of the shape of the workpiece; j) Subjecting the workpiece to the at least one machining program for the at least one fine machining step; k) Measuring the workpiece after the at least one fine machining step by measuring means to determine a second data set of the finely machined workpiece comprising at least actual geometries of the shape of the workpiece; l) Processing the second data set of the finely machined workpiece to instantiate the actual model of the finely machined workpiece comprising at least actual geometries of the shape of the workpiece; m) Repeating steps i) to I) until the workpiece takes on the shape of the target geometries of the cutting tool.