Mibro National Plug Tap & Die

NF Fractional Plug Tap is used for cutting internal threads. This heavy-duty plug tap is made from tool steel that is titanium nitride coated for reduced friction. Plug tap sizing consists of two numbers; the first number refers to the diameter of the hole being threaded, the second number states the number of threads per inch. Made with quality tool steel that’s titanium nitride coated to reduce friction First 3 to 5 threads are tapered to assist with straight and accurate start for threading Plug tap designed to thread new or rethread existing holes.