The Hertel Extension Tap (Part #R867170) is a precision threading tool designed for professional machining applications. This 3/4-10 UNC tap features 4 flutes with an H3 ground thread configuration and a bright uncoated finish for optimal performance. Crafted from high-quality high speed steel, this standard hand tap with plug chamfer provides excellent durability and cutting efficiency when creating internal threads. The 6" overall length offers extended reach for deeper holes and difficult-to-access areas. This extension tap is ideal for maintenance professionals, machinists, and industrial applications where precise threading is required. The robust construction ensures consistent performance across multiple threading operations, making it a reliable addition to any professional toolbox. Perfect for creating strong, accurate threads in various materials when standard-length taps won't reach.