The STI TAP F/S 4-40 H2 B 2F is a high-quality tapping tool designed for precision threading in various applications. With a thread size of 4-40, this tool is perfect for creating fine threads in metalworking and fabrication. Made from premium materials, it ensures durability and long-lasting performance. The tap adheres to industry standards, making it compatible with a wide range of tapping machines. Its design allows for clean and accurate threading, enhancing the overall quality of your work. This tapping tool is an essential choice for professionals seeking reliability and precision.