Quote from: rusty on September 13, 2012, 08:40:41 PM
JO mfg seems to be war era, and not much past the 50's....

They did manage to (aquire a) patent (for) an eggbeater drill
http://www.datamp.org/patents/displayPatent.php?pn=2310759&id=14411

There are a few other references in the patent files as reference material, not much else...

Gotta be a military thing. I've got a JO Mfg. angled hand drill, used for drilling in really tight spaces (like inside airplane wings). It's also military says USAF on it.  I think Proto made one, too.