Thin-walled, tight-tolerance turned parts from 3" to 45" diameter on eighteen CNC turning centers, including Okuma V100R 45" verticals and Nakamura-Tome twin-spindle/twin-turret lathes. Discs, rings, sleeves, shafts, and spacers machined from exotic forgings, castings, and bar stock to tolerances as tight as .00025".