The chuck is mounted within a carrier having {HEAD ~ a bore} for {TAIL ~ a shaft portion} of the chuck 
for
The chuck is mounted within a carrier having { HEAD ~ a bore } for { TAIL ~ a shaft portion } of the chuck
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH