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Stanley® Proto® 1/4" Hex Shank Extension measuring 3/8" X 2" 3/8" is made of forged steel and has the size stamped on it for easy identification. Socket features ball socket retention and has 7/16" hex.
Features
Use extensions to gain access to fasteners in locations that would otherwise be difficult to reach
Male square is oriented in-line with female squares for use with fixed head torque wrenches
Full chamfer at drive opening (when applicable) for easy engagement with drive tools
Drive end chamfer and four detents help provide quick positive engagement with drive tool on any of the socket drive walls