WERKZEUG ZUR BEARBEITUNG VON BOHRUNGEN.

摘要

PCT No. PCT/DE90/00987 Sec. 371 Date Jun. 29, 1992 Sec. 102(e) Date Jun. 29, 1992 PCT Filed Dec. 22, 1990 PCT Pub. No. WO91/10527 PCT Pub. Date Jul. 25, 1991.The tool for machining bore transitions includes a holder drivable rotatably through at least one rotation, and drivable in an advance stroke and in a return stroke; and a spring wire having at least two resilient arms with overlapping movable free end, the spring wire being bent into a hairpin shape so as to have a stem or bent end portion structured to be inserted and held in the holder and a cutting medium provided on the free ends of the resilient arms for machining the bore transitions. The holder can advantageously be provided with a slot for the stem, threaded bolts which engage between the resilient arms of the spring wire and a spring which spring-loads the side of the spring wire inserted in the slot.