roughing end mill with waveform teeth

例句：

1. 1.The roughing end mill is used to cut the material before it is machined further.
   粗加工端铣刀用于在进一步加工之前切割材料。
2. 2. The engineer designed a new tool that uses waveform teeth for better cutting efficiency.
   工程师设计了一种新的工具，使用波形牙齿以提高切削效率。
3. 3.The manufacturer recommends using this type of end mill for roughing operations to achieve optimal results.
   制造商推荐使用这种端铣刀进行粗加工操作，以获得最佳结果。