They offer high precision, low volume productions. They are used for
composite testing of production components. They have high speed, quiet
operation, longer life and greater efficiency. The most common applications are as setting masters and rolling masters for inspection and production applications. They are used to determine the accuracy of work gears. When master gears and work gears are rolled together on rolling fixtures dimensional variations are determined by various indicators, charts or other indicating devices. Master Gears are also used in aerospace and automotive industry.