Irwin 1461 Fractional Tap, 7/8-9 Thread, Plug Tap Thread, 4-Flute, HCSFour straight flutes are ground to provide rapid chip removal for efficient threading also for hand threading work in a variety of materials. Taps produce a class 2B thread. Used in applications such as routine maintenance, repair work and for rethreading where high accuracy and tolerance thread is not critical. Unit: EA UPC: 042526014611 Model Number: 1461