8 Pc. Sensor & Sending Socket Set Designed for the removal and installation of oxygen sensors, oil pressure sending units, and vacuum switches. Set includes:. 1/2 Drive 1-13/16 (29mm) Oil Sender Socket. 3/8 Drive 7/8 Slotted Socket for PVS, TVS, and O2 Socket. 1/2 Drive 1-1/16 Thermal Sensor Socket. 3/8 Drive 7/8 (22mm) Oxygen Sensor Socket. 3/8 Drive 1-1/16 Deep Oil Pressure Sending Socket. 1/2 Drive 7/8 (22mm) Oxygen Sensor Socket. 3/8 Drive 7/8 (22mm) Low Profile Offset Oxygen Sensor Socket 41720 No -