Tractor tool or industrial or automotive?

[Stillgottimefor1]

Got this a while back in a box lot. What is it for or from?

I’m not home right this minute but I think the socket end 1”
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[Provincial]

It is an "Extension" used on Caterpillar D8H, 583H, 955C, 977D, 977H. That is the Caterpillar part number forged into the shank.

 

[Stillgottimefor1]

That is the most precise answer I have ever received, thank you brother.!

BTW, thank you again Provincial, for the answer!
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[Snaparxon]

Nice find!

 

[Stillgottimefor1]

It’s a little bent (like me), but is this tool still useful or should I put it in a shadow box?

If someone can use this then I will sell it to them cheap plus shipping, please be someone who will actually use it.
Sent from my iPhone using The Garage Journal mobile appNow that I’ve had coffee I’m thinking that with modern tools this thing is obsolete, anybody want display it in a Cat shop?

 

[Snaparxon]

If you would, please post a pic of this tool in my Caterpillar tool thread.

https://www.garagejournal.com/forum/showthread.php?t=394151&highlight=caterpillar

 

[dan360]

FWIW it's a drain plug extension "wrench" to be more specific.