Irwin Hanson NF Fractional Plug Tap

The Irwin Hanson NF Fractional Plug Tap line is a family of high carbon steel hand threading taps. Use them to cut or clean internal fine-thread (NF) fractional threads. They suit routine maintenance, repair work and rethreading, where very high thread accuracy and tight tolerance are not critical. You may also see them called fractional taps, NF plug taps or HCS thread taps.

Key Features:

• High carbon steel construction for general-purpose hand tapping
• Four straight flutes are precision ground to clear chips quickly and make threading more efficient
• Plug style with a 3 to 5 thread chamfer, the most common chamfer, which suits general-purpose threading
• Class 2B threads for a standard general-purpose fit
• Designed for hand threading in a variety of materials, including most common metals

Hanson is a long-established tap and die brand under Irwin Industrial Tools. These taps give workshops, garages and maintenance crews a dependable, affordable way to restore or create fine fractional threads.