Milwaukee M5-0.80 mm Metric Straight Flute Plug Tap is designed to provide precise and reliable internal threading for a variety of metal applications. Crafted with durability in mind, this plug tap features laser-etched sizing for easy identification and a protective Black Oxide coating that resists corrosion. Its square shank fits all standard tap handles and wrenches, making it versatile and easy to use for through-hole threading tasks. I for use on metals such as brass, aluminum, and mild steel, this tool delivers consistent performance. For results, it is to use cutting fluid during threading to ensure smooth operation. Model Number: 49-57-5128