In recent years, with the further expansion of market awareness and the continuous improvement of business grades, domestic hardware measuring tools have continued to shine brightly. From visual inspection to simple measurement to precision measurement, advances in measurement technology have ensured progress in manufacturing technology to some extent. The famous scientist Mr. Qian Xuesen also pointed out: Information technology includes measurement technology, computer technology and communication technology. Measurement technology is the key and the foundation. Precision Machining requires not only the precision and stability of the machine tool, but also the accuracy of the tools and fixtures. It also requires precision measuring instruments to calibrate and measure. Some are in the process of processing; others are detected afterwards. Precision machining requires not only the precision and stability of the machine tool, but also the accuracy of the tools and fixtures. It also requires precision measuring instruments to calibrate and measure. Industry expert Luo Baihui disclosed that taking the wind power industry as an example, the machining and testing of typical components such as turbine blades, rotor wheel slots, and turbine generator rotor embedded slots in power generation equipment are represented and reflected to some extent. The state-of-the-art cutting technology and the latest achievements and levels of CNC cutting tools, digital measurement technology and measuring instruments have attracted the attention of the tool manufacturing industry. It is gratifying that the domestic hardware measuring instrument manufacturers have increased their investment in digital display technology and digital display hardware product development in recent years, and have achieved great results. Domestic digital display tools have evolved from the simple bar LCD digital display of previous years to