A professional who sets up and operates planer-type milling machine that moves workpiece back and forth against rigidly held rotating cutters to mill workpieces, such as castings and machine parts, according to knowledge of planer-mill operating procedures. Respnsibilities include:

• Studies blueprints or layout on workpiece to determine machine set-up, and sequence of machining operations.
• Lifts workpiece, using hoist, to position on machine bed.
• Secures workpiece in holding fixture, using wrenches, and verifies position, using gauges, calipers, or square.
• Selects cutting tool and mounts it in spindle, using handtools.
• Adjusts controls to set feed rate, speed of cutting tool, and depth of cut.
• Turns controls to position cutting tool relative to workpiece, starts machine, and engages automatic feed.
• Observes operation, stops machine to change cutting tool, and adjust controls.
• Verifies conformance of workpiece to finished specifications, using precision measuring instruments.
• Removes workpiece from machine bed.