Jigs and fixtures are used to reduce the cost of production as there use elimination being out work and setting up of tools.
To increase the production.
To assure the high accuracy of the parts.
To provide for interchange ability.
To enables heavy and complex shaped parts to be machined by holding rigidly to a machine.
To control quality control expenses.
Less skilled labour.
There use partially automates the machine tool.
Improve the safety at work, thereby lowering the rate of accidents.