The STI TAP F/S 4-40 GH2 B 3F USA from Field Tool Supply is a high-quality tap designed for creating 4-40 internal threads. This tap is made from premium steel, ensuring durability and longevity in various applications. The GH2 classification indicates its general-purpose design, making it suitable for a wide range of threading tasks. Its 3-flute design allows for efficient chip removal, enhancing the threading process. This tap meets industry standards for performance and reliability, making it an excellent choice for both professional machinists and DIY enthusiasts.