Twist drill bit
01
麻花钻头, 螺旋钻头
a common type of drilling tool consisting of a cylindrical shaft with spiral flutes and a pointed tip, designed to create holes in various materials by rotating and drilling into them
例子
He switched to a larger twist drill bit to create a hole big enough for the pipe to fit through.
他换了一个更大的麻花钻头，以创建一个足够大的孔让管道通过。
