4mm hex bit 72pcs holder

thingiverse

tried to make it so the 2nd level of the misc box holds the contents of the first level. and is locked in place by the outer cover. and dropping the T-slotted piece into the tray. locks the bit holders in. the 12 bit holders should be printed in soft tpu with something like 25% infill, so they flex. for everything else, 100% infill pla or any rigid filament is fine