The Wright Tool 378 is a 10-piece 3/8-inch drive standard socket set with 12-point geometry, covering common American fastener sizes in a compact spread.
Wright Tool has forged 3/8-inch drive sockets in Barberton, Ohio since 1927 from U.S. steel. The 12-point geometry engages fasteners at 30-degree intervals, useful in tight rotation arcs near walls and brackets.
Use the 378 set for general automotive service, motorcycle work, and equipment maintenance on American-spec fasteners. Lifetime warranty included.






