The Hertel Straight Flute Tap is a precision threading tool designed for creating 9/16-18 UNF (Unified National Fine) threads. Featuring 4 flutes with a bottoming chamfer, this tap is crafted from high-quality high-speed steel with a bright/uncoated finish for durability and performance. The straight flute design efficiently removes chips during the tapping process, making it ideal for through holes and blind holes. With a 3-3/8" overall length and right-hand thread direction, this H3 tap provides excellent control and accuracy for threading applications. This hand tap is manufactured by MSC Industrial under the Hertel brand, ensuring reliable performance for professional machinists and fabricators. Perfect for precision threading tasks in manufacturing, maintenance, and repair operations where fine UNF threads are required.