The Hertel Straight Flute Tap features a 1-8 UNC thread size with 4 flutes and a plug chamfer design. Crafted from high-speed steel with a premium titanium nitride finish for enhanced durability and performance, this tap offers a 3B class of fit for precision threading applications. The tap measures 5-1/8" overall length with a 2-1/2" thread length, making it suitable for various threading tasks. This straight flute hand tap is designed for creating internal threads in pre-drilled holes with excellent accuracy and consistency. Ideal for professional machinists and industrial applications, this Hertel tap delivers reliable performance when working with a range of materials. The straight flute design helps with chip evacuation during the threading process, ensuring clean and precise threads.