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Machinists

SOC 51-4041.00Job Zone 3 · Medium Preparationv.26.05

Context coveredThis framework covers precision machining competencies from entry-level shop-floor tasks through executive-level leadership in manual and CNC production environments within the discrete manufacturing sector.

Sources:O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.SkillsCrosswalkSkillsCrosswalk — O*NET enrichment + adjacency index. Opens in new tab.
Emerging
Entry / Apprentice
  1. Precision measuring instruments such as micrometers and vernier calipers — identify and handle under direct supervision on the shop floor to support basic dimensional checks.
  2. Blueprint and engineering drawing fundamentals — interpret basic views and title-block tolerances under technician guidance before beginning a machining operation.
  3. Manual lathe and milling machine controls — operate under close direction to produce simple turned or milled features on soft metals within stated tolerances.
  4. Machine feed and speed tables — read and apply manufacturer-recommended settings under supervisor instruction during initial production runs.
  5. Completed workpieces — measure and compare against a go/no-go gauge or dimension sheet under supervision to identify obvious out-of-tolerance conditions.
  6. Cutting tools and tool holders — select and mount following a written setup sheet under journeyman oversight in a vocational or apprenticeship lab setting.
  7. Basic shop mathematics including fractions, decimals, and unit conversions — apply to calculate simple part dimensions from a drawing with guidance from a senior machinist.
  8. Machine tool lubrication and daily cleaning routines — carry out according to posted maintenance schedules to support proper operational condition of shop equipment.
  9. CNC machine control panel — navigate basic functions such as homing, tool offsets, and cycle start under direct instruction during introductory CNC training.
  10. Active listening and clarifying questions — use when receiving verbal or written job instructions from a supervisor to ensure correct setup before cutting begins.
Developing
Mid-level / Established
  1. Vernier calipers, micrometers, and dial indicators — apply routinely and independently to calculate and verify dimensions and tolerances on completed parts in a mid-volume production environment.
  2. Manual lathes, milling machines, and surface grinders — set up and operate with minimal oversight to machine parts to drawing specifications across a range of ferrous and non-ferrous materials.
  3. Feed rate, spindle speed, and depth-of-cut parameters — monitor and adjust during active machining cycles to maintain surface finish and hold tolerances within ±0.001 inch.
  4. CAM software such as Mastercam or Fusion 360 — generate or modify basic toolpaths for two- and three-axis CNC operations from existing CAD geometry in a production shop.
  5. Sample parts and multi-view engineering drawings — study independently to determine operation sequences and fixturing requirements before setting up a new job.
  6. CNC turning and machining centers — program conversational or G-code routines for familiar part families and verify dry-run execution before live cutting.
  7. In-process quality checks — perform at defined inspection intervals using precision instruments to detect and flag deviations before they become nonconforming finished parts.
  8. Machine tool preventive maintenance tasks including coolant checks, way lubrication, and filter replacement — complete on schedule to minimize unplanned downtime.
  9. Troubleshooting common machining defects such as chatter, tool deflection, and poor surface finish — diagnose cause and apply corrective action using deductive reasoning and production experience.
  10. Job travelers and ERP work-order records — update accurately after each operation to support accurate production tracking in a manufacturing facility.
Proficient
Senior / Expert IC
  1. Complex multi-setup machining sequences — plan and execute autonomously on lathes, mills, and grinders to fabricate tight-tolerance parts from detailed engineering packages without supervisor intervention.
  2. Full GD&T callouts including true position, runout, and profile tolerances — interpret and verify on finished components using CMM or precision hand tools in a precision-parts production environment.
  3. Non-routine machining challenges such as exotic alloys, thin-walled sections, or interrupted cuts — analyze root cause and implement corrective tooling or parameter strategies independently.
  4. CAD/CAM software — develop multi-axis toolpaths, select appropriate cutting strategies, and post-process proven programs for introduction into a live CNC production cell.
  5. First-article inspection reports — lead preparation by measuring all drawing-controlled features and documenting results to satisfy customer or AS9100/ISO 9001 quality requirements.
  6. Process improvement opportunities including cycle-time reduction and scrap elimination — identify and implement through critical thinking and analysis of production data in a mid-size machine shop.
  7. Machine tool alignment, tramming, and geometric accuracy checks — perform and document to maintain equipment within specification across a multi-machine department.
  8. Unfamiliar part geometries and ambiguous drawing notes — resolve by coordinating directly with engineers or customers and proposing feasible machining approaches.
  9. Control precision and arm-hand steadiness — apply consistently during delicate hand-grinding, deburring, or fitting operations on close-tolerance assemblies.
  10. Junior machinists and apprentices — guide informally on setup techniques, measurement methods, and safe machine operation during daily production activities.
Advanced
Lead / Principal / Executive
  1. Departmental machining standards, work instructions, and process control plans — author and maintain to govern quality, safety, and throughput across all CNC and manual operations in the facility.
  2. Capital equipment evaluation and selection — lead by benchmarking machine tool specifications, justifying investment to management, and overseeing installation and qualification of new equipment.
  3. Apprentice and mid-level machinist development programs — design and deliver structured on-the-job training curricula aligned with industry certifications and shop competency frameworks.
  4. Complex or high-value component failures — direct root-cause investigations by applying advanced troubleshooting methodologies and coordinating cross-functional teams including engineering and quality.
  5. Facility-wide CNC programming standards including tooling libraries, offset protocols, and post-processor configurations — establish and enforce to ensure consistent, error-free production across all machine platforms.
  6. Long-range capacity and workflow planning — oversee by analyzing ERP scheduling data, identifying bottlenecks, and recommending staffing or equipment solutions to operations leadership.
  7. Customer and supplier technical negotiations — represent the machining function by interpreting engineering requirements, communicating manufacturing constraints, and reaching feasible specification agreements.
  8. Continuous improvement initiatives targeting OEE, first-pass yield, and scrap rate — champion using data-driven analysis and structured problem-solving methods across the production department.
  9. Shop-floor safety culture and OSHA compliance programs — lead by auditing practices, correcting hazards, and reinforcing risk-aware behaviors among all production personnel.
  10. Technology adoption roadmaps including CAM upgrades, automation integration, and Industry 4.0 tooling — define and drive at the organizational level to position the shop for long-term competitive capability.

AI-at-Work Competency Framework

Sources:Anthropic Economic IndexAnthropic Economic Index — release_2026_03_24. Opens in new tab.Jadhav & Danve, 2026Skill Automation Feasibility Index — Jadhav & Danve, 2026 (arXiv:2604.06906). Opens in new tab.WEF Skills TaxonomyWEF Skills Taxonomy 2021 — Building a Common Language for Skills at Work. Opens in new tab.

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Sources:Pathsmith™ Durable SkillsPathsmith™ Durable Skills Framework — America Succeeds + CompTIA. Opens in new tab.O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.
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Related titles
Machinist · CNC Machinist · Aircraft Machinist · Auto Machinist (Automotive Machinist) · Carbide Operator · CNC Lathe Machinist (Computer Numeric Controlled Lathe Machinist) · CNC Lathe Machinist (Computer Numerically Controlled Lathe Machinist) · CNC Machinist (Computer Numeric Controlled Machinist) · CNC Machinist (Computer Numerical Control Machinist) · CNC Machinist (Computer Numerically Controlled Machinist) · CNC Mill Machinist (Computer Numeric Controlled Mill Machinist) · CNC Mill Machinist (Computer Numerically Controlled Mill Machinist)
RAPIDS apprenticeships
0040 · Machinist · 0199 · CNC Machinist
O*NET skills
Operation and ControlCritical ThinkingMonitoringOperations MonitoringActive ListeningSpeakingCoordinationComplex Problem SolvingTroubleshootingQuality Control Analysis
Knowledge domains
MathematicsMechanicalProduction and ProcessingDesign
Abilities
Finger DexterityManual DexterityArm-Hand SteadinessControl PrecisionSelective AttentionDeductive ReasoningProblem SensitivityNear VisionMultilimb CoordinationRate Control
Work styles
Attention to DetailDependabilityCautiousnessAchievement OrientationPerseveranceIntegrity
Technology
Computer aided design CAD softwareAnalytical or scientific softwareComputer aided manufacturing CAM softwareIndustrial control softwareEnterprise resource planning ERP softwareObject or component oriented development softwareProcedure management softwareSpreadsheet softwareOffice suite softwareElectronic mail software
Tasks · seed anchors for statements
  1. Calculate dimensions or tolerances, using instruments, such as micrometers or vernier calipers.
  2. Machine parts to specifications, using machine tools, such as lathes, milling machines, shapers, or grinders.
  3. Measure, examine, or test completed units to check for defects and ensure conformance to specifications, using precision instruments, such as micrometers.
  4. Set up, adjust, or operate basic or specialized machine tools used to perform precision machining operations.
  5. Program computers or electronic instruments, such as numerically controlled machine tools.
  6. Study sample parts, blueprints, drawings, or engineering information to determine methods or sequences of operations needed to fabricate products.
  7. Monitor the feed and speed of machines during the machining process.
  8. Maintain machine tools in proper operational condition.
CIP education codes
48.050148.0503

Sources: O*NET v30.2 (CC BY 4.0), SkillsCrosswalk.com, LER.me®, Anthropic Economic Index, SAFI (Jadhav & Danve, 2026), WEF Skills Taxonomy 2021, Pathsmith™ Durable Skills Framework. © 2026 EBSCOed.