Countersink bit
01
埋头钻头, 锥形钻头
a specialized drill bit with a tapered end used to create a conical recess at the top of a drilled hole, allowing screws or fasteners to sit flush with or below the surface of the material
例子
For a clean look, always use a countersink bit when attaching trim or molding.
为了外观整洁，安装装饰条或模制件时始终使用沉头钻头。
