通过分析触头座径向孔位置要求，开发一种可以同时满足径向孔圆周均布要求和

By analyzing the requirements for the position of the radial hole of the contact base, a rotatable drill tool that can meet the requirements of the radial hole circumferential uniformity and the angle with the end hole at the same time was developed to facilitate the processing of the radial hole of the contact base, thereby improving production efficiency. , Save processing cost.

By analyzing the position requirements of the radial hole of the contact base, a rotatable drilling tool which can meet the requirements of the circumferential uniform distribution of the radial hole and the included angle with the end face hole at the same time is developed to facilitate the radial hole processing of the contact base, so as to improve the production efficiency and save the processing cost.<br>

By analyzing the position requirements of radial holes in contact base, a rotatable drilling tool is developed, which can meet the requirements of uniform distribution of radial holes and the angle between radial holes and end holes at the same time, which is convenient for machining radial holes in contact base, thus improving production efficiency and saving machining cost.