precision boring head

例句：

1. 1. The precisionboring head is essential for theaccurate cutting of metal parts.
   精密钻头对于金属部件的精确切割至关重要。
2. 2. Theengineer used a precision boring head to createa precise hole in the metal.
   工程师使用精密钻头在金属上制造了一个精确的孔。
3. 3. The precision boring head was designedto ensure that the workpiece was preciselycut and finished.
   精密钻头的设计是为了确保工件被精确切割和完成。