Spade bit
01
铲形钻头, 平钻头
a type of drill bit with a flat, paddle-like shape and a sharp point, used for drilling large-diameter holes in wood or plastic materials
例子
He used a spade bit to drill large holes in the wooden beam for the plumbing pipes.
他使用了一个扁钻头在木梁上钻大孔用于水管。
