A drill jig is a type of jig that expedites repetitive hole center location on multiple interchangeable parts by acting as a template to guide the twist drill or other boring device into the precise location of each intended hole center. Drill jigs are to produce components that are accurate as well as interchangeable. Drill jig, whose purpose is to locate and clamp the component firmly. The consistent quality of manufactured products due to low variability in dimension. Cost reduction. Inter-changeability and high accuracy of parts. Inspection and quality control expenses are significantly reduced.