Round Threading Die: Thread: M16 x 1.5 (right); Outer Diameter: 38 mm; Thickness: 10 mm; Precision Class: 6g. Made from M2 high-speed steel (6542), it offers high hardness, good wear resistance, and excellent cutting performance. Wide Range of Applications: Round threading dies are used to process, correct, or clean external threads and are used for threading materials such as stainless steel, aluminum alloy, cast iron, copper, iron, and plastic. Ideal for maintenance and repair of pipelines, panels, and machinery. Features: Conical locking hole, high locking force, without loosening. Suitable for re-threading existing threads in hard materials like metal and creating new threads in soft materials like plastic. The surface is lubricated with grease to prevent rust, the thread is clean and easy to repair. Easy to Use: The threading die is used with a die stock (also called a handle or die wrench). The positioning groove of the threading die should be aligned with the set screw in the center of the wrench, then the screw should be inserted into the groove and tightened. It is necessary to make a quarter to a half turn to facilitate chip removal through the designated hole. Tips: Apply a suitable lubricating oil to the cutting edge of the threading die when threading. The end of the rod should be chamfered at 1 × 45°, without the chamfer being too large. The diameter of the rod should be smaller (approximately 0.05 mm to 0.15 mm) than the nominal diameter of the desired thread.