Abstract:In the study on cold-pressing insertion technology of button bit, the authors have analyzed the influences such factors as fit shrink range between button and hole, hole accuracy, hole wall roughness, surface hardness of bit body on insertion efficiency, and discussed how to increase quality of insertion and productivity. The results of development of the cold-pressing insertion technology and its equipment would be of referential value for developing modern production line of button bit in our country's-drilling tool production.