drill bit

US /ˈdrɪl bɪt/
UK /ˈdrɪl bɪt/
"drill bit" picture
1.

드릴 비트, 드릴 날

a cutting tool used to remove material to create holes, almost always of circular cross-section

:
He inserted the drill bit into the chuck.
그는 드릴 비트를 척에 삽입했다.
Make sure to use the correct drill bit size for the screw.
나사에 맞는 드릴 비트 크기를 사용해야 해.