Method and device in a telecommunications system means of application of force rotationally symmetric (12, 112), as seen axially, an external or internal contour in the shape of a star, where the individual arms (18, 118) of the star are drawn as acute arcs, Of which the external points lie on a common circle external (22122), where a counterparty is associated.In particular, a drill, insert or head of screw, has a contour adapted to the contour of the married means of application of force (12, 112), so that the rays (20, 120) of the sidewall of the means of application of force (12, 112) and the counterparty are supporting each other so so To obtain a planar crimping surface; for the case in which, in particular,The contour and the contour are adapted by the spokes (20) in the outer contour (12) being selected as 4% to 12%, preferably, from 6% to 10%, preferably, approximately 8% to 10%, lower than the associated internal contour (112), while, in the case of the contour contour and married, the circle int The rule (14, 114).On which the central points of the rays (20, 120) are arranged around the axis of rotation (10, 110) methods of application of force (12, 112), has more or less the same diameter, in particular is larger by 4% to 6%, in particular, by 5%. In the outer contour of the diameter in the contorn The internal.
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