With the developing of urbanization of all the countries in the world (especially the developed country), the prospect of exploiting and utilising underground space is very bright. On the occasion of the digging technology developing, the need of shield driving machines, TBM machines is rising. At the present, our shield cutters and TBM cutters have been used in the Komatsu, Milsubishi, Herrenknecht, Ishikawajima-Harima machine.