Tool ID

[Reversepolarity]

Anyone know what this is?
Picked it up at a flea market.
I have uses for it.
But it has no name. And I don't know what its actual use is.

 

[woody 73]

Ask and you shall receive:

Blackhawk drain plug wrench:

http://alloy-artifacts.org/blackhawk_151_detail.html

 

[Reversepolarity]

Cool thanks.