Step drill bit
01
阶梯钻头, 台阶钻头
a specialized drill bit with multiple stepped diameters, allowing for the gradual enlargement of holes and the creation of various hole sizes with a single bit
语法信息
有生性状态
无生命
形态构成
复合词
可数
复数形式
step drill bits
例子
He used a step drill bit to create perfectly sized holes for the electrical fittings.
他使用阶梯钻头为电气配件创建了尺寸完美的孔。
