This special socket is designed to fit any 3/8 inch drive ratchet or extension. This is the perfect tool to reach those tight spaces, especially on MINIs. In order to get to either O2 sensor on the header you will need to have this socket as the off the shelf sockets just can't get into that tight space. The socket is slotted so that it will easily slip over the sensor wire harness without damaging the wire. 6 point socket design allows virtually unlimited fitment combinations. This unit will fit any vehicle that has the standard 22mm oxygen sensor hex head.

Image shown is a 12mm socket BUT the actual socket is a 6 point socket.