Stanley Proto J5114 3/8-Inch Drive Torque Adapter 7/16-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Designed for easy torque calibrations.</li><li>Adapters measure 2" from the center of the square drive to the center of the adapter opening.</li><li>Special heat-treated alloy steel helps to increase strength and durability.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/316f99Jtm3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/216EkbofZEL.jpg" noproxy>