Metric Round Cutting Die Key specifications - Thread Size: M4 x 0.7 - Outer Diameter (OD): 20 mm / 0.8 in - Thickness: 5 mm / 0.2 in - Material: Alloy Steel High Speed Steel (HSS) capability - High hardness and wear resistance - Note: Die described as HSS in its feature, suitable for re-cutting existing threads in hard materials or creating new threads in softer materials such as plastic Versatile applications - Designed for machining, correcting or cleaning external threads - Suitable for general tapping work across a range of materials including stainless steel, aluminum alloy, cast iron, copper, iron, aluminum, plastic and more - Reliable choice for repairing pipes, plates or machines Easy to use - Align the position groove and tighten with the mounting screw in the middle of the die wrench - Tapered locking hole design provides a strong, secure grip that resists loosening during use Use scenarios - Recut damaged external threads on metal pipes or fittings - Repair worn threads on machine housings, plates or assemblies - Clean and restore external threads on components made of stainless steel, aluminum, cast iron, copper, or plastic during general tapping work