In addition, a plurality of dowel pins 55 extend through {TAIL ~ the shoulders} 53 and into {HEAD ~ the end} of rolling cutter shell 48 
In addition , a plurality of dowel pins 55 extend through { TAIL ~ the shoulders } 53 and into { HEAD ~ the end } of rolling cutter shell 48
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH