Socket Removal Note

Turn the socket while pushing the protrusion of the ring through the hole of the socket with a tape-wrapped flathead screwdriver.
Push the socket forward.

Fig 1: Turning Socket While Pushing Protrusion Of Ring Through Hole Of Socket With A Tape-Wrapped Flathead Screwdriver
Courtesy of MAZDA MOTORS CORP.
Return the socket clockwise to original angle position as shown to pull it forward.

Fig 2: Identifying Original Angle Position Of Socket
Courtesy of MAZDA MOTORS CORP.