我厂有几种零件,要钻φ0.3毫米以下不同直径的小孔。由于从未加工过这样的小孔,所以感到非常神秘,参看了许多资料,他们都是用洋设备、专用工具加工的。因此开始时,我们认为加工这种小孔非要洋设备不可。这时我们想起毛主席的教导:“不要迷信外国人,外国人有的,我们也要有,外国人没有的,我们也应该有”。主席又就:“你对于那个问题不能解决么?那末,你就去调查那个问题的现状和它的历史吧!你完完全全调查明白了,你对那个问题就有解决的办法了”。我们根据毛主席的教导,深入到工具车间,与老师 I plant several parts, to drill φ0.3 mm holes of different diameters. Since I never worked on such a hole, I felt very mysterious and read a lot of information. They were all processed with foreign equipment and special tools. Therefore, at the beginning, we think it is not necessary to process such small holes. At this moment, we think of Chairman Mao’s teachings: “Do not superstitious foreigners, foreigners, we also have, foreigners do not, and we should have.” The chairman said: “You can not solve that problem? Then you go to investigate the status of the problem and its history! You fully understand that you have a solution to the problem.” According to Chairman Mao’s teachings, we went deep into the tool shop, with the teacher