Size: M64 X 4.0 Round Die. Cutting Direction: Right Hand. Material: Alloy Tool Steel. Round Thread Die: Round dies are suitable for general purpose threading, widely used in thread repair or cleaning the external thread. Use Suggestions: 1. Check the specification and outer diameter of the die and the clamping range of the die wrench to ensure that they match. Choose a suitable screwdriver to unscrew the fixing screws on the main body of the die wrench. 2. Lubricating oil should be applied when cutting, suitable lubricating oil is conducive to cutting or cooling, making cutting easier, it can help to extend die service life. 3. It needs to be reversed every 1/4~1/2 circle to facilitate the chip discharge from the chip hole.