• 1. counterbore: 埋头直孔 | 平底扩孔钻 | 埋头孔 | 台阶孔
• 2. counterbore drill: 平底扩孔钻
• 3. CBORE Counterbore: 扩孔 | 埋头孔

更多释义

• 1.Our products including End Mills, Machine Taps, Reamers, Center drills, Counterbore, Countersinks, Core drills, HSS tool bits and milling cutters.
  公司产品包括：直柄、锥柄铣刀、丝锥、中心钻、倒角刀、扩孔钻、铰刀、锥钻、直钻及各类高速钢刀具。
  dict.yoduao.com
• 2.This paper discussed a method of counterbore machining by using though-hole orientation to improve the efficiency of lower exact counterbore volume-produce and reduce the cost of corporation.
  利用沉头孔通孔二次定位加工沉头孔盲孔的方法，可提高批量较大、精度要求较低的沉头孔加工效率，节约企业的加工成本。
  dict.yoduao.com

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