The Hertel Straight Flute Tap features a 1-1/8-12 UNF thread specification with 4 flutes and a plug chamfer design. Crafted from high-speed steel with a bright, uncoated finish, this precision threading tool offers a 3B class of fit for optimal thread engagement. The tap measures 5-7/16" in overall length and is designed for right-hand threading applications. This straight flute hand tap is engineered for creating internal threads in pre-drilled holes with consistent accuracy and smooth cutting action. Ideal for professional machinists and industrial applications, this Hertel tap delivers reliable performance when working with various materials. The 4-flute design helps efficiently remove chips during the threading process, while the plug chamfer provides standard thread depth for general-purpose applications.