Grey Pneumatic Corp 1412MD 1/2'' Drive Deep Length Metric Set - 14 Piece<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Designed to transfer the pressure from the thinnest part of the socket wall toward the thicker section， resulting in increased strength</li><li>Includes a half inch universal joint and a 3 inch of extension</li><li>Made of high quality steel (chrome-molybdenum)</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41SCYGGzSIL.jpg" noproxy>