Any info on a OTC JD 142 wrench, 12 point box & square box ends.
No info, sorry -- here's a photo with detailed inset of the markings. Pegboard gives 1" grid for scale.
It's a diesel service wrench that has been 'straightened out"
look here
http://www.ebay.com/itm/2-OTC-Owatonna-Tool-BOX-END-SPECIAL-WRENCHES-Diesel-Truck-Tractor-3-4drive-1-1-8-/380725214085?nma=true&si=psExTAEYfsNpISL%252FMYIT13%252FEIvo%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557