Precision boring and rolling tube: Compared with traditional honing, it has the following advantages: (1) Improve processing efficiency: fast processing speed; (2) Enhance surface hardness: high surface hardness; (3) Processing accuracy: the processing accuracy can reach IT8 grade, and the surface roughness can reach Ra0.05-0.4μm; (4) Working environment: low noise, no pollution, and labor cost saving; (5) Reasonable processing procedures: scraping and rolling can be arranged as the last procedure after other processes (such as drilling oil holes, welding, thread turning, etc.) are completed.