This Hertel Straight Flute Tap is precision-engineered for creating 5/16-18 UNC threads with exceptional accuracy. Featuring 3 flutes and a bottoming chamfer design, this tap allows for complete threading to the bottom of blind holes. Crafted from high-quality high-speed steel with a bright/uncoated finish, it delivers reliable performance for professional applications. The 2B class of fit ensures standard tolerance threading suitable for most general-purpose applications. With a 1-1/8" thread length and 2-23/32" overall length, this right-hand tap provides optimal reach for various threading tasks. Manufactured by MSC Industrial, this H5 tap combines durability with precision for consistent, clean threads in a variety of materials.