Nitro-Max ANSI/ANSI taps are produced with a reduced neck to allow for longer reach, improved coolant flow, and easier chip evacuation. Manufactured from M35 Cobalt (HSS-E) with a high vanadium content, these taps offer higher heat resistance and red hardness over conventional High Speed Steel taps. They can be used for production threading with both conventional or CNC equipment, in a wide range of material groups, including difficult to machine materials such as High Tensile Strength Steels and Stainless Steel. Black Oxide surface treatment provides improved lubricity and helps prevent the formation of built up edge. Spiral Point taps are designed for producing through holes in a work piece. The 2150N is manufactured to industry recognized USCTI 302A Standards. 1/4" - 20, nitro max spiral point tap