New 10pc Oxygen Sensor and Diesel Injection Socket Set Oil Pressure Unit 10Pc Oxygen Sensor & Diesel Injection Oil Pressure Unit Vacuum Switches Socket Set Heat Treated Chrome Vanadium & Chrome Molybdenum Steel with Black Oxide Finish Accepts either 3/8 Or 1/2 Square Drive Ratchet Depending On The Size Of The Socket Easy To Remove Oxygen Sensor, Injector, Oil Pressure Sending Unit ,Vacuum Switch From Most Vehicle 7/8 Inch X 3-1/8 Inch Long 3/8 Inch Square Drive,