BIG KAISER Präzisionswerkzeuge AG is the leading supplier of high-precision modular boring tools. The company was founded in 1948 by Heinz Kaiser and is now a member of the BIG Daishowa Group. BIG KAISER tools are world-renowned for their unrivaled quality and are successfully used in mechanical engineering, in the automotive, aviation and aerospace industries. The BIG KAISER products are also trusted by companies that are active in the field of tool, mold and apparatus engineering as well as those from the watch industry and medical technology.