Lisle 12100 Oxygen Sensor Socket<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Special 7/8" socket with cutaway slot to provide clearance for wire harness</li><li>Provides adequate depth to fit over sensor</li><li>Heat-treated alloy steel</li><li>Use with 3/8" square drive or 1" wrench</li></ul></div><img src="http://ecx.images-amazon.com/images/I/319089M0B1L.jpg" noproxy>