The Wright Tool 339 is a comprehensive 31-piece 3/8-inch drive socket set with both standard and deep 6-point sockets in fractional sizing, packed in a metal storage case.
Wright Tool has forged sockets in Barberton, Ohio since 1927 from U.S. steel with no foreign blanks. Six-point geometry grips fastener flats more securely than 12-point sets, the preferred choice for high-torque and impact applications.
Use the 339 set for daily mechanical service across automotive, motorcycle, and equipment work. The deep-socket coverage handles long studs, lug nuts on extended threads, and recessed fasteners that shallow sockets cannot reach.
