rick, thanks again for the advice. the machine is a green machine I which is the granddaddy of the ecopress. after speaking with their machinery liaison i believe the order of release was: green machine I, green machine II, unipress and ecopress. i already have two ecopresses (a manual from true32 when they were running a half-off sale and a pneumatic that came from a pawnshop) that are set up for boring drawer fronts and the suspension brackets, but i wanted another one to devote to boring for levelling feet. i modified my drill press with an add-on euroeze attachment from woodworker.com to bore for blum inserta hinges. that reminds me, i have to figure out how to knock the forstner bit out of the spindle as the set screw appears long gone but the bit is still stuck in there as if it were almost welded!
the machine is fully pneumatic. i suspect that the motor stays engaged throughout the plunging process. i'll shoot some pics later on this evening.
you only had to purchase 300 hinges?!? maybe i should change suppliers!