Package included:1pc Metric Round Die High-quality alloy steel construction: Made from alloy steel, this round die offers exceptional hardness, torque, toughness, and wear-re-sistance for a long-lasting service life Versatile applications: This die is suitable for processing, correcting, or cleaning external threads in various materials including stainless steel, aluminum alloy, cast iron, copper, and more Easy to use: The die is easy to use with its positioning groove and slot for fastening screws Customer Service:If you encounter any product problems, please feel free to contact us, we will provide you with quality after-sales service, Manufacturer: Fudeshe