Two tools in one saves space in your pouch. One end opens telephone box fasteners, the other end tightens nuts on binding-post terminals. The 7/16-Inch socket has a black finish and the 3/8-Inch socket has a silver finish. Sockets are 1-1/4-Inch (32 mm) deep to fit over long binding posts and are thin-walled for easy access into tight areas
Socket ends are color-coded for quick identification of socket sizes.