counterbore

1. 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。
2. Measurement Method and Experimental Research on Dynamic Force Behavior of Bottom Drill String counterbore with guide
   底部钻柱动态力学特性测量方法与实验研究有导柱的平底扩充孔钻
3. Counterbore for hexagon socket head bolt
   内六角头螺栓埋头孔
4. Counterbore with guide Pre-tensioned trough bearing pedestal of column stability analysis
   有导柱的平底扩充孔钻先张法槽式台座承力柱稳定问题浅析
5. The act of expanding an aperture. counterbore for hexagon socket head bolt
   一个孔穴扩大的行为。内六角头螺栓埋头孔
6. The government expected a temporary accord with the Opposition before the end of the year. counterbore with guide
   政府期望年底以前和反对党达成临时协议。有导柱的平底扩充孔钻
7. Counterbore for hexagon socket head bolt Mechanical property requirements for studs shall be the same as those for bolts.
   柱头螺栓的机械性能要求与螺栓相同。
8. Active measuring instrument for section height of counterbore of angular contact ball bearings LOCK RED
   角接触球轴承锁球高主动测量仪
9. The Design and Application of Mechanically Fixed Counterbore Drill
   机夹扩孔钻的设计与应用
10. This paper describes the principle and construction of active measuring instrument for section height of counterbore of angular contact ball bearings, and the analysis of measuring error. An example of calculation is given.
    本文介绍了向心推力球轴承锁球高主动测量仪的原理结构，对该种量仪的测量误差进行了分析，并计算了实例。
11. Application of Drill-Counterbore Tool
    钻&锪复合刀具的应用

noun

1. a bit for enlarging the upper part of a hole

   Synonym:    countersinkcountersink bit