twice to four times as wide as the gap 17 the permanent magnets 15 are firmly connected with the carrier plate 14 and the pole shoes 16 using for example an adhesive material the carrier plate 14 and the pole shoes 16 may be made of a soft magnetic sheet metal as an alternative to the soft magnetic material the pole shoes 16 could also be made from a permanent magnetic material or other suitable material in this case the permanent magnets 15 and the pole shoes 16 could be formed as a one piece construction enabling the gap 18 between the pole shoes 16 to be omitted in the area of the carrier plate 14 the rotor 9 is rigidly connected with a cutter supporting member 19 mounting two undercutters 20 fastened to a shaving head frame 22 adjacent to each undercutter 20 is a respective shaving foil 21 bent to conform to the shape of the associated undercutter 20 the cutter supporting member 19 is suspended on the shaving head frame 22 by means of a respective s shaped oscillating bridge 24 disposed at either end so as to be movable linearly in the direction of movement of the rotor 9 which is indicated by a double arrow 23 and extends parallel to the section plane the areas of the oscillating bridges 24 oriented transversely to the direction of movement of the rotor 9 are each made of a thin high vibration resistant material as for example spring steel formed approximately in the.