Tightening of bolts 54 induces {HEAD ~ a preload} into the mating surfaces of {TAIL ~ the rolling cutter shell} 48 and replaceable cutter shell 49 
Tightening of bolts 54 induces { HEAD ~ a preload } into the mating surfaces of { TAIL ~ the rolling cutter shell } 48 and replaceable cutter shell 49
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH