A professional who sets up single- or multiple-spindle threading machines to thread and cut, ream, or chamfer cylindrical stock according to order specifications, threading charts, and knowledge of threading procedures. Respnsibilities include:

• Compiles dimensions of stock, sequence of machining operations, and type and size of thread from charts and specifications.
• Installs specified feed grips, rotating dies, die cutters (chasers), cutting and reaming or chamfering tool, using micrometers, gauges, and handtools.
• Installs cams, gears, pulleys, pressure tripping mechanism, and adjusts speed control knobs to synchronize transfer and ejection of stock with machine action.
• Operates machine to evaluate its performance.
• Verifies dimensions of workpieces with specifications, using fixed gauges and scale.
• Sharpens die cutters on grinding wheel.
• May set up manually operated threading machine.