Milwaukee #4-40 NC Plug Tap and #43 Drill Bit Set

The Milwaukee #4-40 NC Plug Tap and #43 Drill Bit Set includes a precision-machined plug tap designed for creating or repairing clean, accurate internal threads, along with the matching drill bit for piloting. The plug tap features laser-etched sizing for clear, long-lasting markings and a protective black oxide finish for corrosion resistance. Constructed from durable high-carbon steel, this set is engineered for threading applications in common metal materials including brass, aluminum, and mild steel. The square shank tap is compatible with standard tap handles or tap wrenches for through-hole threading, while the accompanying drill bit is designed for use with drill drivers.