The STI TAP SP 4-40 GH2 P USA from Field Tool Supply is a precision tap designed for creating internal threads in various materials. With a size of 4-40, this tap is ideal for applications requiring fine threading. Made in the USA, it adheres to high manufacturing standards, ensuring quality and reliability. The GH2 tolerance provides a precise fit, making it suitable for both professional and DIY projects. This tap is commonly used in electronics, automotive, and machinery applications, making it a versatile tool for any workshop.