The STI Tap 3/8-16 H3 B 3F from Field Tool Supply is designed for precision threading in various materials. This high-quality tap features a 3/8-16 thread size, ensuring compatibility with standard fasteners. Crafted from durable high-speed steel (HSS), it offers excellent wear resistance and longevity. The H3 tolerance ensures a precise fit, making it ideal for both professional and DIY applications. With a 3-flute design, this tap provides efficient chip removal, enhancing performance during use. Perfect for use in automotive, construction, and manufacturing settings.