Jig fixture is a tool used to hold and position workpieces during manufacturing processes, such as drilling, cutting, or assembly. The primary function of a jig fixture is to ensure that workpieces are correctly and securely positioned, achieving high accuracy and repeatability according to established standards.

Jig:  A device used to position workpieces and guide tools, such as drills or cutters, to ensure accurate and precise work.

Fixture: A device used to hold workpieces firmly in place during manufacturing processes, ensuring stability and consistency. Overall, a jig fixture combines the functions of both a jig and a fixture to achieve high-precision manufacturing, reduce errors, and increase productivity.