The high-precision multifunctional boring tool module product specified in this standard has independent intellectual property rights. This patented product has significant structural improvements over the boring tool specified in JB/T6565-2007 "Universal Boring Head". This boring tool can process apertures ranging from 8mm to 203mm. The adjustment accuracy of the processed aperture is higher than that of the universal boring tool specified in the mechanical industry standards, and the adjustment resolution is twice as high. Representing the domestic advanced technology level, the market share ranks among the top among domestic peers.