1. Die Wrench: Matching Die Size: M22 M24 (Metric) / 7/8' 1' (UNC/UNF) / Die with 55mm OD; Die Material Size: 55mm x 18mm / 2.17' x 0.71'. The die shaft is made of alloy steel for strength and durability. The black oxide coating provides additional protection against rust and corrosion. 2. Wide Applications: The die handle wrench can precisely cut, , or clean external threads on rods, bolts, screws, pipes, shafts, and other cylindrical objects, or simply remove bolts and threaded rods (when used with round dies). 3. Feature: The round die wrench is equipped with 5 adjustable screws to secure the dies. The die holder provides a firm grip for round dies and is easy to use. The ergonomic plasticcoated handle ensures a secure and comfortable grip. 4. Easy to Use: Align the positioning groove of the die (not included) with the mounting screws of the wrench, then insert the screws into the die groove and tighten. Apply cutting oil or lubricant to the workpiece and die before starting thread cutting for smoother and cleaner results.