A pointed and threaded tool for drilling and boring that is secured in a brace, bitstock, or drill press.
通常是尖头的有螺旋状图案并且可
更换，用在钻柱钻柄或钻床
。
A pointed and threaded tool for drilling and boring that is secured in a brace, bitstock, or drill press.
通常是尖头的有螺旋状图案并且可更换，用在钻柱钻柄或钻床。
声
：
例
、词
均由互联网资源自动生成，部未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
