The Micro 100 1/2" Shank Threading Tool is a high speed steel threading tool with a 1/2" shank diameter and 1/4" minimum hole depth. It has a 60 degree threading point angle and can cut unified coarse, unified fine, and metric threads. The overall length is 5" and it has an American National thread size of 5/8"-18. This threading tool is designed for use on lathes, screw machines, and CNC lathes. It features a TiN coating for increased tool life and lubricity. The Micro 100 threading tool offers accurate threading and extended tool life.