Milling this complex part from pre-hardened 4140 steel (36 Rc) required a combination of a machine tool capable of both high speeds and the ability to precisely control machine movements, an assortment of high-performance cutting tools, and the right CAM software. In this video, the cast of characters includes an Okuma Genos M560V vertical machining center, Sandvik-Coromant tooling and Esprit ProfitMilling CAM software.