Just found the small pair, was wedged into a box of junk at the thrift store. Had the other pair awhile, and somewhere have a big 8-9 inch pair. It seems Motor Spec was part of Diamond tool in Duluth, Minn. Anyone find many of these, or even a single pair? Any more info, maybe from a catalog.
I have a couple pair I think. I see them on ebay some.
I found a pair K 16 at restore in Osh, Wi. In real decent shape
I got a K15 at a yard sale.