OKK Corporation has been building very rigid and accurate milling machines in Osaka, Japan since 1915. Vertical, horizontal and 5 axis machining centers have been their "bread and butter". OKK is committed to making the most rigid machining centers in the world in their factory in Japan.
This video shows their VM76R, vertical machining center cutting steel like it is butter. When you need the power to plow thru material, speed to finish work and reliability, think of OKK.