Drill bit
01
钻头, 钻嘴
a cutting tool used in conjunction with a drill to create holes in various materials, such as wood, metal, plastic, or concrete
例子
I need to buy a new drill bit because the old one is too dull to drill through metal.
我需要买一个新的钻头,因为旧的太钝了,无法钻透金属。



























