钻石钻头

例句：

1. 1. He used a diamond drill to make the hole.
   他用钻石钻头打了一个洞。
2. 2. The diamond drill is very sharp and can easily cut through hard materials.
   钻石钻非常锋利，可以轻松切割硬质材料。
3. 3. She bought a diamond drill for her husband's birthday.
   她为丈夫的生日买了一个钻石钻。