Old cheap set of cresent wrenches bought Western Auto years ago.. MADE IN CHINA junk.. any way never stayed set , floppy jaws . PIA.. Need to replace water pump on 99 Blazer and new Radiator Do a 1 time and Done with it. well fited the Wrench to fan Hub.. took the set screw out to make it long and fit fan nut. marked it. took to a local machine shop for tack weld . and forget 36mm ?? but he charged me $5.00 for the very simple tacks with welder. Used it. then painted it to find easiy later...