Established in 1954, Spencer-Pettus Machine Co. is one of the largest gear manufacturers and machine shops in the southeastern United States. It specializes in precision machining, custom-cut gears, gearbox repairs, and custom-engineering and machining for after-market/industrial applications. The firm serves the agricultural, aluminum, cement, ceramics, food processing and material handling industries among others. It offers precision machining of a variety of materials, such as aluminum, aluminum bronze, cast iron, ductile iron, nylon, plastics and steel. Some of the products offered by the company are pulleys, bevels, internal spur, chain drives, splines and gear boxes.