7/16" x 20, national fine thread, fractional tap, carbon steel, ideal for routine maintenance, repair work & for rethreading where high accuracy & 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, use 25/64" drill bit.
| SKU | 23133 | UPC | 042526081408 |
| Model Number | 8140 | Brand | Irwin |