NEW 7pc Oxygen Sensor Socket Set Automotive Sensor Oil Pressure Sending Unit Application: 1/2'' Drive x 27mm (12 point) oil pressure sending unit socket. 1/2'' Drive x 29mm (6 point) pressure/vacuum switch socket with slot. Oil pressure sending units on late 1980 and mid 1990 GM vehicles. Designed to be used with 1/2" drive tool. 1/2'' Drive x 7/8''or 22mm (6 point) long oxygen sensor wrench socket with slot. 3/8'' Drive x 7/8'' or 22mm (6 point) vacuum switch socket with slot. 3/8'' Drive x7/8'' or 22mm (6 point) vacuum switch socket with slot. 3/8'' Drive x 1-1/16'' & 1''or 27mm (6 point) oil pressure sending unit socket. Special deep design fits oil switches up to 2-5/8". Can be used with a 3/8" drive ratchet or 1-1/8" wrench. 3/8'' DR x 7/8''or 22mm (6 point) short oxygen sensor wrench socket with slot. Features: Designed for the removal and installation of oxygen sensors, oil pressure sending units, And vacuum switches equipped with wires or vacuum tubes. Sockets made with Chrome Vanadium. Brand new Blow mold case for storage. **The color of the carry case will be varied, you may receive item with Blue or Red case, it won't affect item function.**