{HEAD ~ The method} 1, wherein the step marking step involves marking {TAIL ~ the shank hole location} with a marker 
{ HEAD ~ The method } 1 , wherein the step marking step involves marking { TAIL ~ the shank hole location } with a marker
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH