Milwaukee M4-0.70 mm Metric 1" Hex Threading Die is the tool for creating or repairing precise external threads. Precision machined and built to last, this hex die features long-lasting laser-etched sizing for clear identification and a protective Black Oxide coating that excellent corrosion resistance. Its 1" hex shape is compatible with the MILWAUKEE® Hex-LOK™ 2-in-1 Threading Handle and all standard 1" Hex Die stocks, providing versatility for various threading tasks. Engineered for durability, this threading die is designed to cut threads in multiple metal applications, including brass, aluminum, and mild steel. For optimal performance and extended tool life, it is to use cutting fluid during operation. Model Number: 49-57-5319