A method and device are disclosed. The nozzle has a rotatably supported nozzle body, on which one or more nozzle orifices are provided. A contact surface is provided on the tool disk and can be clamped to an accommodating surface on the accommodating disk by a clamping device. The method can include: providing a plurality of workpieces; and positioning the plurality of workpieces by placing a set of shims between adjacent pairs of workpieces. The monitor laser beam is in the shape of a monitor signal that includes monitor pulse trains emitted at a first frequency, while the jamming laser beam is in the shape of a jamming signal that includes jamming pulse trains emitted at a second frequency.