PURPOSE: To prevent each strand wire of a wire cable from being disassembled and destroyed when a strong pinching shear force is applied and maintain good appearance and strength at the cut edge of the wire cable by cutting the wire cable in the state where the vicinity of the part to be cut of the wire cable is clasped by a retaining ring.

CONSTITUTION: A retaining ring D is fitted tightly around a wire cable B so that the peripheral surface of the wire cable B is clasped by the retaining ring d. The top edge part of the wire cable B is inserted into the space between the transmission gear parts 14 and 14 of a cutting tool A and the insertion hole 17 on a piston rod 5a. A movable handle 20 is closed in this state, and the wire cable B is cut by cutter teeth 15 and 15. At this time, as the vicinity of the cut part of the wire cable is tightly clasped by the retaining ring D and kept in an integral form, each strand of the wire cable B is prevented from being disassembled even if a strong pinching shear force is applied by the cutter teeth 15 and 15, and the wire cable B can be cut in neat order in the state where the primary twist form is kept.