{HEAD ~ A rotary drilling tool} has a plurality of cutters mounted on {TAIL ~ the tool body} and formed with cutting edges defining a cutting profile 
{ HEAD ~ A rotary drilling tool } has a plurality of cutters mounted on { TAIL ~ the tool body } and formed with cutting edges defining a cutting profile
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH