我们在加工军工产品镜管时，孔槽深还有公差要求，所以在车削加工时测量很困难，为此采取在150mm、1/50游标卡尺加上自制卡脚1的方法，就可解决槽底尺寸测量问题（见图1）。使用自制卡脚既不损坏游标卡尺外观形状和精度，使用方便和通用性强，还可配用在200mm、300mm的游标卡尺 We are in the processing of military products, the tube, the hole depth tolerance there are tolerances, so turning lathe measurement is very difficult, for this to take 150mm, 1/50 vernier caliper with a homemade card method 1, you can solve the bottom Size measurement problems (see Figure 1). The use of homemade calipers neither damage the appearance and accuracy of vernier caliper appearance, ease of use and versatility, but also with the vernier caliper of 200mm, 300mm