Product Name : ST-309E DUAL DRIVE OXYGEN SENSOR WRENCH
Item No. : ST-309E
*Slotted body allows clearance for wire harnesses.
*Tool comes with both 3/8" and 1/2'' drive.
*Attach a 1/2" breaker bar on the end of the tool to initially loosen stuck sensors.
*Usea 3/8" ratchet on the top for rapid withdraw and installation. Fits oxygen sensor applications with a heat shield.