The Micro 100 Threading Tool is a high-speed steel threading tool with a 5/16" shank diameter and 16 TPI. It has a 60 degree included angle and can cut up to 5/8" depth of thread in steel, stainless steel, cast iron, aluminum, and other materials. The tool has an AlTiN nano coating for increased tool life. It is made in the USA by Micro 100, a manufacturer of indexable tooling, solid carbide tools, and other precision cutting tools. This threading tool allows efficient internal and external threading operations on CNC lathes and screw machines.