Hello, I was digging through the weekend haul, and this was at the bottom. Nice Keen Kutter stamp & border. I have never seen anything like this, so my guess is a double ended screwdriver bit for a brace???? Thanks, Lou

Yes, that is what it is.  I have had a few of them.  I think I have seen some Dasco ones before.  Both ends have a square taper shank and a screwdriver bit.

I run across quite a few square taper shank screwdriver bits but that is the first double end one I've seen.

Late to the party but here's one I found a few months back from The HD SMITH & Co. 

They labeled it the Double Bit.

Thought it might be of interest because of their wrenches.

Hello, Thanks for sharing!!!!  Regards, Lou