Make tools, fittings, and small metal pieces used in other products.
Drives prototype or experimental vehicles, such as automobiles, trucks, motor homes, or buses, under test conditions to obtain performance data: Drives vehicle over test tracks, city streets, or highways to perform specified tests. Gathers data on vehicle performance, such as braking action, stability, and maneuverability. Listens for unusual noises from engine, transmission, differential, and body parts, indicating possible defects. Copies readings from special test equipment. Records information, such as miles traveled and gas, oil, or water consumed, brake operation, noises detected, and general performance on standard form. May install special testing equipment specified for tests. May perform maintenance duties, such as gassing car, changing oil, or lubricating car.