A motor advances the plates to cause them to drop singly into a pickup area, where they are picked up by {HEAD ~ a pair} of {TAIL ~ magnetic arms} and swung beneath a screw gun extension 
A motor advances the plates to cause them to drop singly into a pickup area , where they are picked up by { HEAD ~ a pair } of { TAIL ~ magnetic arms } and swung beneath a screw gun extension
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH