Quality of Materials: The sleeves are made from high quality chrome molybdenum steel, which allows the user to apply maximum torque without the risk of breakage. Investment casting ensures precise fit and function, strength and durability, and the black oxide finish prevents rust. Design: Standard 6-point slotted design allows you to remove the oxygen sensor while still connecting the wiring harness, the socket is biased for compactness and provides extra leverage even in hard to reach places, very convenient, s Please feel free to use it. Applicability: Oxygen sensors can be removed and installed on vehicles with computer controlled engines, the common 6 angle 22mm socket fits most oxygen sensors and can be used with any ratchet 10mm inch drive or wire cutters, the offset drive with wire gate allows access to the sensor from the side rather than the top, preventing damage to the wires. Function: Even if you don't have much experience in auto repair, you can use this tool to replace the oxygen sensor and help improve your car's emissions and fuel consumption. This high-quality tool is applicable and easy to use, which can save your time! Maintaining Gasoline Combustion Quality: The oxygen sensor is an important tool for controlling the combustion quality of automobile oil, the oxygen sensor removal tool is essential for the maintenance and inspection of the oxygen sensor. The combustion quality of automobile oil is related to automobile exhaust emissions, reduction of automobile exhaust pollution and other important issues. Note: The data is all measured manually, please allow 1-3cm error due to differences in light and display, there may be color differences, please refer to the actual item received.