Internal broaching tool

Broaching is one of NACHI's core competences. In the demanding field of final machining for turbine blades – foot geometries (fir trees) for the secure assembly of blister and turbine blades – NACHI is seen as the world's leading supplier of broaching tools, with a 50 percent market share. Well-known turbine manufacturers for energy generation and the aerospace industry rely on NACHI's broaching tools. NACHI is also a leading supplier of high-quality broaches for finishing of precision internal gear. In Japan, NACHI operates the world's largest production site for broaching tools. The specialists benefit from the high degree of vertical integration  from steel melting through shaping and machining up to heat treatment and coating.