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螺旋钻头：铸钢叶片，钻尖，耐磨。
Spiral drill : steel blades, drill, wear resistance.
youdao
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麻花钻也许可以被划分成三个主要的部分：钻柄、钻体和钻尖。
The twist drill may be divided into three principal parts:shank, body and point.
youdao
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麻花钻也许可以被划分成三个主要的部分：钻柄、钻体和钻尖。
The twist drill may be divided into three principal parts:shank, body and point.
youdao