The Hertel Standard Pipe Tap (1/4-18, NPT) is a precision threading tool designed for creating accurate pipe threads. Constructed from high-quality High Speed Steel with a durable TiN (Titanium Nitride) finish, this tap offers enhanced hardness and extended tool life. Featuring 4 flutes for efficient chip evacuation and smooth cutting action, it ensures clean and precise threads every time. With an overall length of 2-7/16" and a thread length of 1-1/16", this tap is perfectly proportioned for standard pipe threading applications. The NPT (National Pipe Taper) design creates the tapered threads required for proper sealing in pipe connections. Part #G837556T is manufactured by MSC Industrial, making it a reliable choice for professional machinists and industrial applications where precision threading is essential.