Features and Benefits:30mm socket wrench fits NOX Sensors6 and 12 Pt SP Grip DriveCrowfoot Design1/2" square opening for breaker bar use3.0L Diesel Dodge, Chrysler, Jeep and other brands using 30mm NOX sensorsSome 3.0L Diesel Dodge, Chrysler and Jeep vehicles use a 30mm NOX sensor mounted in the exhaust system similar to O2 sensors used in gas engine vehicles. The NOX sensors are normally mounted between the top of the exhaust pipe and under-body heat shields. Sensor access is limited. Crowfoot design allows the socket wrench to slip over the sensor wire without cutting the wire and provides the clearance needed to access the sensor body without dropping the exhaust system. Exhaust system heat and corrosion makes sensor removal difficult. Reinforced crowfoot design socket wrench with 6 and 12 Pt SP Grip Drive provides added torque strength by contacting the sensor body instead of the hex tips. 1/2" square opening is provided for breaker bar use.