An electromagnetic switch operative to close and open an electrical contact arrangement to thereby turn on and off an electrical current flowing through an electrical circuit. A movable iron core includes a shaft insertion hole that extends in an axial direction of the movable iron core and has an opening in an end face of the movable iron core axially opposing a movable contact of the electrical contact arrangement. The hole includes a step disposed at a position along the depth, a shaft fixture section on a bottom side of the step, and a shaft guide section on an opening side of the step. An inside diameter of the shaft fixture section is smaller than an inside diameter of the shaft guide section. One axial end side portion of the shaft is press fit in the shaft fixture section.