expansion bit drill

例句：

1. 1.The engineer used an expansion bit drill to bore a hole in the rock.
   工程师使用扩张钻头在岩石中钻孔。
2. 2. The construction crew needed an expansion bit drill to remove the old pipe.
   建筑工人需要扩张钻头来移除旧管道。
3. 3. The drilling company provided the necessary equipment for the expansion bit drill operation.
   钻井公司提供了扩张钻头操作所需的设备。