tap-size drill

例句：

1. 1. Theengineer used a tap-size drill tomake the hole.
   工程师用一个钻头大小的钻头来打孔。
2. 2. The drillbit was too small for the job.
   钻头太小，不适合这项工作。
3. 3. Thedrilling process requires precisecontrol over the tool'smovements.
   钻孔过程需要精确控制工具的运动。