The Hertel Straight Flute Tap is a precision threading tool designed for creating internal threads with a 1-1/4-7 UNC specification. Featuring 4 flutes with a bottoming chamfer, this tap delivers excellent chip evacuation and cutting performance. Manufactured from high-speed steel with a bright/uncoated finish, it offers durability and reliability for industrial applications. The tap has a 3B class of fit, providing the optimal balance between precision and ease of assembly. With a generous 5-3/4" overall length and right-hand thread direction, this hand tap gives you excellent leverage and control during operation. The straight flute design makes it particularly suitable for through-hole applications in various materials. This Hertel tap is an essential tool for machinists and manufacturing professionals who demand consistent threading results in demanding applications.