Hman, have you bought any lottery tickets lately? Can you pick 6 numbers for me and send them to me in a private conversation? You are right on all accounts. As stated, this is the 3rd set in two months. I don't think they're breaking because they order complete sets. They obviously would be very useful on large pipe/hose fittings where a standard wrench would slip on the rusted nuts. These provide extra grip. I do the work for a local tool supplier who sells to the steel mill. I don't offer any warranty, and I doubt the tool supplier does either since the wrenches were special ordered to these specs.
As for the dividing head, I posted pics of the unit when I acquired it on page-254, #post-344992. I disassembled, degreased, stripped, de-rusted, wire brushed, power and hand scotch brightened, masked all clear areas, three coats of fast dry primer/paint mix, and removed all vestiges of masking tape. Had to make brazing repairs to three cracks in both handles, and machine a brake replacement collar. Wheeeoooo. All that was easy, just time consuming grunt work with stereo cranking out tunes in the garage till the early morning hours on Friday and Saturday. Masking and painting over the last three days. Two parts to finish braze tonight if I can find time. Now I have to figure out what goes in each hole during assembly! Pictures give clues but what part is first???