Cougar Pro E2453 Socket Adapter, 1/4'' Female x 3/8'' Male

The Cougar Pro E2453 1/4-inch Female x 3/8-inch Male Socket Adapter, made of alloy steel, is heat-treated for strength and precision machined to grasp sockets without slipping or rounding edges. The adapter is used to adjust the tool to tighten or loosen a different sized fastener. It meets or exceeds ASME B107.110 quality standards.