The article research into difficulty and problems of the process technology for fine holes whose axle-base is short in the machine, and introduces a method and key technologe to solve the that.

• 摘要研究了小孔距精密孔加工技术的难点和小孔距多轴头设计制造的主要问题，提出了对这些难点和问题的解决方法和关键技术。