基本释义:

钻头切削刃折断

网络释义

1)twist-off on the bottom,钻头切削刃折断

2)drill edge,钻头切削刃

3)cutting head,取心钻头切削刃

4)fixed cutter bit,固定切削刃钻头

5)cutting lip,钻刃切削刃

6)bit and cutting edge group,钻[刀头]和切削刃组件