The TAP F/SPI (S05) 5-40 B by Field Tool Supply is a high-quality tap designed for precision internal threading. This tap features a size of 5-40, making it suitable for various applications, including automotive and machinery. Constructed from durable high-speed steel, it provides excellent wear resistance and cutting performance. The bottoming tap design allows for threading in blind holes, ensuring a clean finish. Its right-hand cut enhances threading efficiency, making it a reliable choice for both professionals and DIY enthusiasts.