A coring device is mounted onto {TAIL ~ the platform} and used for forming {HEAD ~ a cavity} in the nuggets 
A coring device is mounted onto { TAIL ~ the platform } and used for forming { HEAD ~ a cavity } in the nuggets
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH