There is described a clocking angle setting tool for a wire harness having a support arm provided with a clamp for attaching a harness cable of the wire harness to the support; arm, a connector receptacle for receiving a connector provided at the end of the harness cable and a key or keyway for engaging with a complementary keyway or key of the connector. The connector receptacle is spaced from the clamp and is rotatably mounted to the support arm. A locking mechanism for locking an angular position of the connector receptacle relative to the support arm is included. The angular position of the connector receptacle relative to the support arm determines a clocking angle of the connector relative to the harness cable.