阶梯式钻铰刀的改进

Improvement of stair-step drill reamer

为了提高保持架兜口的加工质量和加工效率,对阶梯铰刀加以改进。使刀具结构更加合理,使用寿命长,效果良好。

In order to increase the product quality and the machining efficiency,the stair-step drill reamer was improved, the structure of the cutting tool was more reasonable,it has a long life and good effect.