A rotary head for use in an apparatus for forming a stranded wire, the apparatus including an inner rotating body rotating about a predetermined axis, an outer rotating body surrounding the inner rotating body to define an annular space between the two bodies, which rotate about the same axis, and a guide member provided at a first end portion of the annular space to guide wire stock. The rotary head is located at a second end portion of the annular space, has cutters and rotates in a predetermined direction, and also has plural pairs of projections extending on the outer rotating body side of the annular space and the inner rotating body side thereof, with a predetermined gap therebetween, the cutters being provided in the vicinity of the gap.