Features: 1 Material Forging, High Hardness, High Torque, Long Service Life. 2.Phosphating Treatment, Surface Phosphating Treatment, Corrosion Resistance, 3.Concave Edge, Six-sided Screws And Nuts Can Be Quickly Inserted Into The Socket And Are Not Easy to Slip. Specifications: Product:Oxygen Sensor Tool Repair Kit Condition: Brand New Material Vanadium Alloy Steel Color:Silver Package includes : 1pc Oxygen Lambda Sensor Socket