Outer cover material for a wire harness

The present invention provides an improved configuration of a divided metal pipe as an outer covering of a wire harness provided, comprising: a metal tube through which a wire harness having a plurality of electric wires can be passed; and separate from the metal pipe Metal separating element, which is mountable by insertion into the tube; wherein a plurality of insertion spaces for electric wires which are each bounded by the partition member and a peripheral wall of the pipe, are provided continuously in an axial direction of the tube.