Identify vintage square drive tools?

[damon18]

Haven't been able to figure out what these are, some kind of specialty tool for square drive fasteners or plugs?

Found in a shop that worked on tractors starting in the 50's.

 

[Provincial]

Drain plug wrenches for vehicles and equipment that have hollow square plugs.

 

[d42jeep]

Drain plug wrenches. Oops, cross post.
-Don

 

[damon18]

Thanks!

Sent from my SM-G973U using The Garage Journal mobile app

 

[TailGunner3000]

Looks like a lot of Allen keys as well.

 

[r_olson_06]

Haven't been able to figure out what these are, some kind of specialty tool for square drive fasteners or plugs?

Found in a shop that worked on tractors starting in the 50's.

That is the most mutli purpose drain plug wrenches I have ever seen in 1 spot.

Looking for a Smooth Finish Plomb 3065 Double Open End Wrench