螺纹底孔钻

例句：

1. 1. The machine tool needs a threaded drill to fit the screws perfectly.
   这台机床需要一把螺纹钻来完美地配合螺丝。
2. 2. The engineer used a taper drill to make the hole in the wall.
   工程师用锥形钻在墙上打了一个洞。
3. 3. The drilling process requires precise control to avoid damaging the material.
   钻孔过程需要精确控制以避免损坏材料。