dead smooth mill saw file

例句：

1. 1.The engineer used a dead smooth mill saw file to cut the metal.
   工程师用一个死平滑铣刀文件来切割金属。
2. 2.The tool was made from high-quality steel, ensuring a smooth and accurate cut.
   该工具由优质钢材制成，确保切割光滑且精确。
3. 3. The mill saw file is an essential tool for any metalworking operation.
   铣刀文件是任何金属加工操作中必不可少的工具。