Precision meets durability with the Hertel 5/16-18 UNC Tap Set. This comprehensive 3-piece set includes bottoming, plug, and taper taps with 4 flutes, crafted from high-quality high speed steel with a bright finish. Designed for creating clean, accurate threads, these taps feature a 2-23/32" overall length and meet 2B and 3B class of fit standards for optimal performance. The 4-flute design efficiently removes material while maintaining stability during operation. Perfect for professional machinists and serious DIY enthusiasts who demand reliable threading tools for their projects. This versatile tap set is ideal for creating internal threads in various materials, ensuring consistent results with every use. The Hertel brand delivers the precision engineering and durability needed for demanding threading applications.