Fixture in tooling industry contributes more to improve economy of production. It ensures quality and quick transition of parts. A novel design on a fixture for tapping holes for complicated profile petrol pump body made of aluminium die casting material. The fabricated fixture used for trials. The time study conducted with samples and the results we compared with manual cycle time. Improvement in reduced cycle time shown 50% and the rejection quantity due to unmatured threads, shifting of axis and end damage are reduced 1/50 batch. Fixtures like this can adopt to the mass production components in automobile, Aeronautics and manufacturing units.