shank bit
柄钻头
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The core bit includes shank and thread, which consists of male thread and female thread.
有直柄钻头和螺纹柄钻头之分，螺纹柄分为内螺纹和外螺纹。
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