A cutter with a replaceable cutting element is adapted to be mounted upon the rotary head of an earth boring machine or upon {HEAD ~ the body} of {TAIL ~ an earth boring bit} 
of
A cutter with a replaceable cutting element is adapted to be mounted upon the rotary head of an earth boring machine or upon { HEAD ~ the body } of { TAIL ~ an earth boring bit }
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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL