The coring unit 1, wherein said coolant sprayer comprises a coolant port flowably connected to a coolant outlet, said coolant port for receiving coolant from a source associated with said articulated arm and wherein said coolant outlet discharges coolant onto {HEAD ~ said coring bit} for cooling {TAIL ~ said coring bit} during coring operations 
for cooling
The coring unit 1 , wherein said coolant sprayer comprises a coolant port flowably connected to a coolant outlet , said coolant port for receiving coolant from a source associated with said articulated arm and wherein said coolant outlet discharges coolant onto { HEAD ~ said coring bit } for cooling { TAIL ~ said coring bit } during coring operations
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH