{TAIL ~ The cold working reamer} 1, wherein the cutting edges include {HEAD ~ a plurality} of helical cutting edges 
{ TAIL ~ The cold working reamer } 1 , wherein the cutting edges include { HEAD ~ a plurality } of helical cutting edges
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH