A professional who lays out, machines, fits, assembles, and finishes metal parts to make and repair dies for diecasting of metal products and metal molds for injection or compression molding of plastic or glass products, analyzing specifications, and applying knowledge of die and mold design and construction. Respnsibilities include:

• Studies blueprints of product and die or mold, and computes specifications, applying knowledge of shop mathematics and metal diecasting or plastic or glass molding processes and machinery.
• Plans sequence of operations, visualizing shape of die or mold in reverse of product.
• Measures, marks, and scribes metal stock to lay out for machining.
• Gives machining specifications to tool-machine set-up operators or sets up and operates machines, such as horizontal boring mill, engine lathe, profile milling machine, and pantograph machine to machine outer dimensions and contoured cavity of die or mold.
• Grinds, files, and sands parts, using files, emery cloth, and powered grinders, to fit parts for assembly and to smooth and finish cavity.
• Assembles die or mold, using handtools.
• Verifies dimensions, using calipers, planer gauges, and dial indicators.
• May repair molds and be designated Mold Repairer, Die-Casting And Plastic Molding.