The Tap F/SPI (016) 1/4-28 P from Field Tool Supply is a high-quality tap designed for creating internal threads in various materials. With a thread size of 1/4-28, this tap is ideal for precision machining and metalworking applications. Constructed from durable steel, it ensures longevity and consistent performance. The tap features a standard shank for compatibility with most tap holders. This tool is essential for any machinist or DIY enthusiast looking to create reliable threaded connections, meeting industry standards for quality and performance.