The depth and outer diameter of Matco's Shielded Oxygen Sensor Socket, No. MST6675A, are critical features enabling it to fit in the limited space of the heat shield. This tool works with newer Honda, Mazda, Toyota, Lexus and Nissan models, and features a 12-point double hex, enabling the technician twice the number of "clock angle" attachment positions vs. a six-point design. Forged steel for maximum strength, this socket comes in the SP High Tech black finish.