CTA Tools 2073 Oxygen Sensor Socket Set, 3-Piece Includes the three most popular 22mm sockets A universal slotted socket, No 2060 will service all 7/8-Inch (22mm) hex vacuum switches and oxygen sensors For use with all 1/2-Inch square drive tools or 7/8-Inch (22mm) wrench The extended crow's foot design of socket No 2065 allows access to oxygen sensors located in the exhaust manifolds. The stubby, crow's foot design and deeper socket of No 2069 features a 7/8-Inch (22mm) hex with double 1/2-Inch square drive 60mm long x 48mm high All packed in a blow mold case