I picked up a 6" Joar today, a search here did not return anything but it seems to ring a bell for me.
Smaller than this one pictured here.
http://www.tractorshed.com/contents/adpic189943.htm
Brian L.
I remember that also, we had a thread about it, was it a conduit wrench?
One on ebay refered to as a line tool if that helps
yall kin youes that to owpen a joar in the kitchen.
It's a conduit wrench. See add below from July 1948 Popular Science Magazine.
They actually made more sizes than stated in the ad. I have the following numbers:
3, 4, 6, 8, 10, 12, 20, 22, 24 and 28. I don't have a 7 or 14.
(http://i222.photobucket.com/albums/dd3/buswrench/message-board/JoarWrenchAd1948PopularSceince.jpg)
Thanks!