3/8" OFFSET OXYGEN SENSOR SOCKET This offset oxygen sensor wrench enables you to remove and install sensors on computerized engine controlled vehicles. The offset design helps you reach oxygen sensors in tough-to-reach spots compared to standard wrenches. Features include chrome molybdenum construction and a six-point socket with cutaway for wire clearance. This oxygen sensor wrench is for use with a 3/8 in. drive ratchet or breaker bar. Offset design reaches oxygen sensors in hard-to-access areas. For use with a 3/8 in. drive ratchet or breaker bar. 7/8 in. six-point socket with cutaway for wire clearance. Chrome molybdenum construction for long life. Weight 160g.