Irwin 1420 IRWIN HANSON Fractional Tap, 1/4-inch, 20 NC (1420)

1420. Irwin 1/4" - 20NC Plug Tap. Ideal for routine maintenance, repair work and re-threading, these taps produce a class 2B thread and are designed for hand threading in a variety of materials. Specifications: Tap size: 1/2"-20 NC. Tap point style: Plug. Number of Flutes: 4.