Thread Milling Cutters MultiForm UN Threads For ...
Designed for threading hardened steels 4668Rc, Thread Milling Cutters MultiForm UN Threads For Hardened Steels cut internal and external 60° UN threads, and mill both right hand and left hand threads. All tools come with AlTiN Nano Coating for superior hardness and heat resistance. Designed for threading hardened steels 4668 Rc