IJO1235 Features: * Special 7/8" socket with cutaway slot to provide clearance for wire harness * Provides adequate depth to fit over sensor * Heat-treated alloy steel * Use with 3/8" square drive or 1" wrenchRemoves and Installs Oxygen Sensors on Most Domestic and Some Imports. Dimensions: * 7/8"" x 3/8"" Drive Oxygen Sensor Socket Warranty: * Lifetime warranty does not cover abuse