hand screw tap 手用丝锥
inch screw tap 英制螺纹丝锥
international screw tap 国际米制丝锥 ; 公制丝锥
coarse screw tap 粗丝锥 ; 粗螺丝攻
machine screw tap 机用丝锥 ; 机螺杆塔 ; 机丝锥
bone screw tap 接骨螺钉丝攻
The traditional operation of processing for tap hole includes two processes: at first drill a bottom hole which is less than the tap hole. Then process the thread of the tap hole with the screw tap.
传统的螺纹孔加工都需要经过两道工序:先用钻头加工出一个比螺纹孔直径略小的底孔,然后换成丝锥加工出螺纹。
参考来源 - 钻孔、攻丝一次成形设备的控制系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Double safety unit prevents screw tap from wearing out.
二重安全离合器装置能防止丝攻之折损。
Blade tools: eyebolt, turning tool, Allen key, screw tap, milling cutter, drill bits, etc.
刀刃工具类：埃令螺丝(吊环)、圆车刀、六角匙、丝攻、铣刀、钻咀等。
At present, screwdriver and screw tap are hardware which is often used in machining factory.
目前，在机械加工工厂里，螺钉旋具和丝锥是较为常用的两种五金工具。
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