The Hertel Spiral Point Tap (Part #017244AS) is a precision threading tool designed for creating 1/2-20 UNF left-hand threads with exceptional accuracy. Featuring 3 flutes and a plug chamfer design, this high-speed steel tap delivers consistent performance in various materials. The bright/uncoated finish provides excellent visibility during operation, while the 3B class of fit ensures threads meet industry standards for precision applications. With a 3-3/8" overall length, this H3 tap offers the ideal balance of strength and maneuverability for professional machinists and fabricators. The spiral point design efficiently pushes chips forward, making it ideal for through-holes where chip evacuation is critical. Manufactured by MSC Industrial under the trusted Hertel brand, this tap combines durability with precision for reliable threading operations in manufacturing and maintenance environments.