Picked up a great big Keystone ratchet set yesterday.  Female rat, square plug, two male/male extensions, 18 double hex sockets, and 8 8-point sockets.
Haven't been able to find a whole lot about them--it seems they disappeared some time after WWII.
But in my exploration, I came across a pic of a much smaller set with a hex drive.  The thing I want to bring to your attention is the picture that includes what seems to be  straaaaange hex to square wobble adapter.  Fourth pic down.

Ever seen one like it?
http://progress-is-fine.blogspot.com/2014/02/vanished-tool-makers-keystone.html 

Are we sure that belongs with the kit?

Hmmm. Can't be certain, but the more I stare at it, the more it looks like hex-hex instead of hex-square.

Quote from: Bill Houghton on June 02, 2019, 05:56:11 PM
Are we sure that belongs with the kit?

I gave up on being sure of things in 2016.  To answer another post, I still believe it is hex to square.  Probably.

All I have is an empty box found at an estate sale. I saw a set with the same number once on line and it was square drive.
-Don

I think I have one of those swivels around here. I wouldn't know where to look to find it but I thought mine was a hex to hex. I see them every once in a while at estate sales.

Hello, I emailed the site that had the photo of the Keystone set. Here is the response "Hi, I've lost track of that set, but I enlarged the image and I'm sure it's hex to hex- pretty unique!" Regards,Lou

Thanks for clearing that up!  But it would have been way cool.
Here's a strange twist, though.
The ratchet handle from the Keystone (out of Buffalo, NY) set is a dead ringer in shape and size for the handle of the Skinner inner seal saddle tee drilling device (out of South Bend, IND.) I found last summer.

Like this one:
https://www.ebay.com/itm/SK-INNER-SEAL-SADDLE-TEE-DRILLING-DEVICE-VINTAGE-MADE-IN-USA/163610395408?hash=item2617f08310:g:50gAAOSw3ANb7eeO


What's up with that?