Abstract: A wire-cut discharge machine includes an extendable pipe which is provided in between a frame and a first wire guide to guide a wire electrode therein. To allow the first wire guide to move horizontally, a pair of spherical bearing mechanisms is provided; one is used for connecting a top end of a first pipe to a guide; and the other one is for connecting a bottom of a second pipe to the first wire guide. Therefore, due to the extendable pipe, broken wire electrodes can be connected automatically without fail and a workpiece can be electric discharge machined so that it can be tapered.