What is this Snap-On extension?

[ConductorChris]

Hello
Grabbed this 1/4" x 2" extension out of my toolbox and found it is not in fact a 1/4" extension - it doesn't fit.
Stamping on tool (Made in USA Snap/on -1 M2)
Any ideas?

Thanks

 

[Snaparxon]

9/32" drive.

 

[ConductorChris]

Thanks @macaxis - are these rare or just an older sizing?
The piece doesn't look all that old.

 

[ecotec]

Thanks @macaxis - are these rare or just an older sizing?
The piece doesn't look all that old.

It looks old to me. It’s just clean.

 

[tamaraw]

There were a few other drive sizes that died out:

The Snap-On Wrench Company

An article on the Snap-On Wrench Company during the 1920s.

alloy-artifacts.org

 

[VolvoRyan]

From what I can see of the logo, it looks pre-WWII.

-Ryan

 

[Snaparxon]

Thanks @macaxis - are these rare or just an older sizing?
The piece doesn't look all that old.

Not rare really, some of the 9/32" is hard to find. Many folks call it 5/16 drive because 9/32" drive makes no sense.
30's and 40's, lots were made during WWII.
There should be a date code symbol stamped on it to date it.

 

[Sumboodie]

We ended up with one at work that was between 3/8" and 1/2". No idea the story, ended up tossing it.

 

[ecotec]

I think that uncommon drive sizes are perfect for government contracts. The tools would probably go missing at a much slower rate.

 

[ConductorChris]

and the enemy can't unbolt your tanks while your in the bar!

 

[vssjim]

We ended up with one at work that was between 3/8" and 1/2". No idea the story, ended up tossing it.

probably a rare 7/16 sized Blackhawk tool that people collect as you see them on ebay all the time