Fractional Taps (HCS), 1/2 in-20 NF, Chamfer - 3 to 5 Threads

Features: Ideal for routine maintenance, repair work and for rethreading where high accuracy and tolerance thread is not critical | Straight flutes are ground to provide rapid chip removal for efficient threading | Designed for hand threading work in a variety of materials | Taps produce a class 2B thread