Milwaukee 1/2"-13 SAE Straight Flute Plug Tap and Drill Bit Sets include a precision machined Plug Tap designed for creating or repairing clean, accurate internal threads, along with the corresponding drill bit for piloting. These Plug Taps feature long-lasting laser-etched sizing for the clearest markings and are coated with protective Black Oxide to resist corrosion. The square shank of the Plug Tap fits all standard tap handles or tap wrenches and is specifically designed for through-hole threading. Built for durability, Milwaukee’s Straight Flute Plug Taps efficiently cut threads in common metals such as brass, aluminum, and mild steel. The included drill bit is compatible with drill drivers, and for optimal performance, it is to use cutting fluid with the Plug Taps. Model Number: 49-57-5560