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