A reciprocating shaver including an inner cutter upwardly pushing spring for pressing the inner cutter against the inner surface of the outer cutter; slide members held on the outer cutter frame so as to be able to slide; outer cutter elastically supporting members which are for elastically supporting the outer cutter and mounted in the outer cutter frame with one end of each one of them engaging one of the slide members, and another end thereof engaging the outer cutter; and float setting members which are provided in the shaver main body and respectively engage the slide members, in linkage with the mounting motion of the outer cutter frame relative to the shaver main body, so as to determine the position of the slide members.