Set up, operate, or tend milling or planing machines to mill, plane, shape, groove, or profile metal or plastic work pieces.

Observe milling or planing machine operation and adjust controls to ensure conformance with specified tolerances. Position and secure workpieces on machines, using holding devices, measuring instruments, hand tools, and hoists. Remove workpieces from machines, and check to ensure that they conform to specifications, using measuring instruments such as microscopes, gauges, calipers, and micrometers. Select and install cutting tools and other accessories according to specifications, using hand tools or power tools. Select cutting speeds, feed rates, and depths of cuts, applying knowledge of metal properties and shop mathematics. Study blueprints, layouts, sketches, or work orders to assess workpiece specifications and to determine tooling instructions, tools and materials needed, and sequences of operations. Turn valves or pull levers to start and regulate the flow of coolant or lubricant to work areas. Verify alignment of workpieces on machines, using measuring instruments such as rules, gauges, or calipers. Move controls to set cutting specifications, to position cutting tools and workpieces in relation to each other, and to start machines. Move cutters or material manually or by turning handwheels, or engage automatic feeding mechanisms to mill workpieces to specifications. Compute dimensions, tolerances, and angles of workpieces or machines, according to specifications and knowledge of metal properties and shop mathematics. Make templates or cutting tools. Mount attachments and tools such as pantographs, engravers, or routers to perform other operations such as drilling or boring. Record production output. Replace worn tools, using hand tools, and sharpen dull tools, using bench grinders.

Mechanical -- Knowledge of machines and tools, including their designs, uses, repair, and maintenance. Production and Processing -- Knowledge of raw materials, production processes, quality control, costs, and other techniques for maximizing the effective manufacture and distribution of goods. Mathematics -- Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications . Physics -- Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub- atomic structures and processes.

Equipment Selection -- Determining the kind of tools and equipment needed to do a job. Mathematics -- Using mathematics to solve problems. Equipment Maintenance -- Performing routine maintenance on equipment and determining when and what kind of maintenance is needed. Operation and Control -- Controlling operations of equipment or systems.

Number Facility -- The ability to add, subtract, multiply, or divide quickly and correctly.

Controlling Machines and Processes -- Using either control mechanisms or direct physical activity to operate machines or processes (not including computers or vehicles). Handling and Moving Objects -- Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things. Evaluating Information to Determine Compliance with Standards -- Using relevant information and individual judgment to determine whether events or processes comply with laws, regulations, or standards. Monitor Processes, Materials, or Surroundings -- Monitoring and reviewing information from materials, events, or the environment, to detect or assess problems. Getting Information -- Observing, receiving, and otherwise obtaining information from all relevant sources. Performing General Physical Activities -- Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials. Documenting/Recording Information -- Entering, transcribing, recording, storing, or maintaining information in written or electronic/magnetic form. Repairing and Maintaining Mechanical Equipment -- Servicing, repairing, adjusting, and testing machines, devices, moving parts, and equipment that operate primarily on the basis of mechanical (not electronic) principles. Inspecting Equipment, Structures, or Material -- Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects.