The Hertel Spiral Point Tap is a precision threading tool designed specifically for #4-40 UNC applications. Crafted from high-speed steel with a bright/uncoated finish, this tap features 2 flutes and a plug chamfer for optimal cutting performance. The spiral point design efficiently pushes chips forward, making it particularly suitable for through-hole applications while significantly reducing the risk of tap breakage. With a 9/16" thread length and right-hand threading configuration, this tap delivers consistent and precise results meeting H9 tolerance standards. The complete tap measures 1-7/8" in overall length, providing excellent balance between reach and stability during operation. This professional-grade threading tool is built for durability and accuracy in various materials, making it an essential component for machinists and manufacturing professionals requiring reliable thread formation. The Hertel tap's precision engineering ensures clean, accurate threads that meet exacting specifications for industrial applications.