Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16ER64UNK20 RPTECH HSS‑E (M35 Cob) for Durability:

HSS‑E (M35 Cob) for Durability: Cobalt-enhanced steel provides superior wear resistance and longer tool life when reaming hard steels and alloys

while the left-hand spiral flute and right-hand cutting geometry promote efficient chip evacuation and predictable cutting action during reaming

ensuring compatibility with standard reamers and fixtures

a straight shank for quick setup

straight finishing of holes

Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16ER64UNK20 RPTECH HSS‑E (M35 Cob) for Durability:Carmex Thread Turning External Insert is an industry leading solution designed for cutting external threads on right hand UNC, UNF, UNEF, and UNS standards. This laydown triangular insert is built to cover the majority of common thread standards, helping shops simplify tooling and reduce the need for multiple inserts. Its suitable for engineers, buyers, tradespeople, and hobbyists who need reliable, consistent threading performance. Whether youre