51-9161.00 · Task explorer
Computer Numerically Controlled Tool Operators: reported tasks and exploration worksheet
Operate computer-controlled tools, machines, or robots to machine or process parts, tools, or other work pieces made of metal, plastic, wood, stone, or other materials. May also set up and maintain equipment.
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Read the task inventory
This source lists 27 tasks, including 24 marked Core and 3 marked Supplemental. Labels and dates are retained below. Employers can combine or divide these responsibilities differently; explore the task itself before assuming it belongs in every version of the role.
Task source dates: 08/2023.
27 tasks shown
Core · Task 11932 · 08/2023 · Incumbent
Measure dimensions of finished workpieces to ensure conformance to specifications, using precision measuring instruments, templates, and fixtures.
Core · Task 11944 · 08/2023 · Incumbent
Set up and operate computer-controlled machines or robots to perform one or more machine functions on metal or plastic workpieces.
Core · Task 11934 · 08/2023 · Incumbent
Mount, install, align, and secure tools, attachments, fixtures, and workpieces on machines, using hand tools and precision measuring instruments.
Core · Task 11946 · 08/2023 · Incumbent
Review program specifications or blueprints to determine and set machine operations and sequencing, finished workpiece dimensions, or numerical control sequences.
Core · Task 11937 · 08/2023 · Incumbent
Stop machines to remove finished workpieces or to change tooling, setup, or workpiece placement, according to required machining sequences.
Core · Task 11935 · 08/2023 · Incumbent
Listen to machines during operation to detect sounds such as those made by dull cutting tools or excessive vibration, and adjust machines to compensate for problems.
Core · Task 11955 · 08/2023 · Incumbent
Implement changes to machine programs, and enter new specifications, using computers.
Core · Task 11940 · 08/2023 · Incumbent
Calculate machine speed and feed ratios and the size and position of cuts.
Core · Task 11953 · 08/2023 · Incumbent
Transfer commands from servers to computer numerical control (CNC) modules, using computer network links.
Core · Task 11933 · 08/2023 · Incumbent
Remove and replace dull cutting tools.
Core · Task 11942 · 08/2023 · Incumbent
Check to ensure that workpieces are properly lubricated and cooled during machine operation.
Core · Task 11936 · 08/2023 · Incumbent
Adjust machine feed and speed, change cutting tools, or adjust machine controls when automatic programming is faulty or if machines malfunction.
Core · Task 11947 · 08/2023 · Incumbent
Monitor machine operation and control panel displays, and compare readings to specifications to detect malfunctions.
Core · Task 11949 · 08/2023 · Incumbent
Maintain machines and remove and replace broken or worn machine tools, using hand tools.
Core · Task 11941 · 08/2023 · Incumbent
Insert control instructions into machine control units to start operation.
Core · Task 11939 · 08/2023 · Incumbent
Modify cutting programs to account for problems encountered during operation, and save modified programs.
Core · Task 11956 · 08/2023 · Incumbent
Write simple programs for computer-controlled machine tools.
Core · Task 11938 · 08/2023 · Incumbent
Lift workpieces to machines manually or with hoists or cranes.
Core · Task 11943 · 08/2023 · Incumbent
Input initial part dimensions into machine control panels.
Core · Task 11954 · 08/2023 · Incumbent
Set up future jobs while machines are operating.
Core · Task 11945 · 08/2023 · Incumbent
Confer with supervisors or programmers to resolve machine malfunctions or production errors or to obtain approval to continue production.
Core · Task 11950 · 08/2023 · Incumbent
Stack or load finished items, or place items on conveyor systems.
Core · Task 11948 · 08/2023 · Incumbent
Control coolant systems.
Core · Task 11951 · 08/2023 · Incumbent
Clean machines, tooling, or parts, using solvents or solutions and rags.
Supplemental · Task 11952 · 08/2023 · Incumbent
Enter commands or load control media, such as tapes, cards, or disks, into machine controllers to retrieve programmed instructions.
Supplemental · Task 11958 · 08/2023 · Incumbent
Lay out and mark areas of parts to be shot peened and fill hoppers with shot.
Supplemental · Task 11957 · 08/2023 · Incumbent
Examine electronic components for defects or completeness of laser-beam trimming, using microscopes.
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The exported worksheet distinguishes the reported task from your own notes. It supports exploration, not a hiring decision or a validated assessment.
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Source and practice material
Occupational context uses the O*NET® 31.0 Database from the U.S. Department of Labor, Employment and Training Administration, under CC BY 4.0. View the occupation.
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