Armstrong Socket Without Square Ratchet Drive Opening

[MadeinCanada]

I have two sockets with 1/2" through holes where the square ratchet drive opening would be located. You turn the sockets with a 3/4" wrench. One is a MD-12433 (longer one) and the other is MD-12362 (shorter one). The MD-12433 appears to have the end turned down for approximately 1 1/4". Probably owner modified but possibly factory. Can anyone identify what these were used for?

 

[JjKk40]

Those look like specialty sockets, similar to antenna sockets or sockets that have to get down deep over a long stud and you use a wrench to turn it.

 

[bmwrd0]

Some specialty use, looks like a deep nut with some secondary adjustment. So, you could turn a nut while at the same time adjust a screw through the top.

 

[MadeinCanada]

I agree that they are some sort of specialty socket. It is interesting that they have the same hole diameter and both use 3/4" wrench to turn them although the longer one is 9/16" and the shorter is 3/4". I would have thought the sockets would be scaled up proportionally. Well made sockets and will reside with the orphan collection waiting for the day they are needed.

 

[3baygarage]

Neat find. They could have been special ordered that way. Like old Williams and Snap-On, Armstrong also modified tools.

 

[Provincial]

MD. McDonnell Douglas?

 

[MadeinCanada]

Interesting idea if made for McDonnell Douglas. I am not sure if MD had a plant in Canada although I only live 40 minutes from the Minnessota border. I have on a few occasion brought used tools home from the US when traveling.