Master tradespeople use cutting-edge technology to design, engineer, manufacture, reband and repair the largest existing gears, weighing up to 110,000 lb (36,287 kg). The highlights of the gear shop include state-of-the-art, industrial-scale CNC machines for horizontal and vertical turning, milling, forming, internal teeth grinding and gear gashing, and internal attachments for gashing splines on large bore shafts. The shop has a horizontal hobber and a Höfler rapid gear grinder, which can handle ring gear up to 236 inches (6 m), just under 20 ft. The shop also offers advanced testing and analysis, including planetary and parallel gearbox transmission testing as well as thermal and vibration analysis.