Crank Pulley tool

how do i use this?
what are the 2 nut bolts on the front used for? i know the middle one you tighten to press the washers against the pulley to make it set.
once the pulley is on, what are the steps on torquing it after?
i know i need 3 nuts, threaded rod, by looks of it, 8-10 washers. and i got a stock GM new bolt as well (locktight)
well i got pretty far, yeah right, lol appears flywheel is moving...and of course, no tool in sight to block it, and the teeth are kinda small, cant even get a screwdriver. ill figure out something to put...
hows this look? ( i stopped early, gotta watch me some UFC and boxing lol)
ill see if i can tighten any more, if not, remove that tool and install new bolt with locktite
But that looks almost exactly like mine with how it is seated






