The Hertel Straight Flute Tap is a precision threading tool designed for creating 1-8 UNC threads with exceptional accuracy. Featuring 4 flutes with a bottoming chamfer, this tap allows for complete threading to the bottom of blind holes. Crafted from high-quality high-speed steel with a bright/uncoated finish, it delivers reliable performance and durability for industrial applications. The 3B class of fit ensures threads with optimal tolerance for general-purpose fastening requirements. With a 5-1/8" overall length and right-hand configuration, this H4 tap provides excellent chip evacuation and cutting efficiency. The straight flute design makes it ideal for through-hole applications in various materials. This professional-grade threading tool is manufactured by MSC Industrial under the trusted Hertel brand, making it a reliable choice for machinists and manufacturing professionals who demand precision and consistency in their threading operations.