This is wheel brace (lug wrench to us yanks) that was supplied with all disc wheel MGA (not Twin Cam). On one end it has a 3/4-inch hex socket to fit the 7/16-inch fine thread lug nuts. On the other end it has a hook to assist in removing the hub cap. You can slip the small end of the largest tube socket (spark plug wrench) over the handle if you need more leverage.


This crank style lug wrench is from a 1962 MGA 1600-MK-II, after the switch to Shelly jack and more minimal tool kit.