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CNC Boring Bar Operator

Zenar Corporation
Oak Creek, WI Full Time
POSTED ON 4/2/2026
AVAILABLE BEFORE 6/1/2026

As a CNC Machinist specializing in Bore Bar operations, you will be a vital part of our manufacturing team. Your expertise in blueprint reading, CNC programming, and precision measuring instruments will be essential in producing high-quality machined parts. With a strong foundation in machining, math, and CNC technology, you will operate a CNC bore bar efficiently to meet production requirements. Your proficiency in using calipers, micrometers, and GD&T will ensure precise and accurate machining processes. Join our team and showcase your skills in CNC machining to contribute to the success of our organization.

Duties/Responsibilities

  • Program and/or modify computer programs.
  • Set up, adjust and operate various sizes of horizontal boring bars to bore, mill and drill a wide variety of work maintaining a high degree of accuracy and strict tolerances.
  • Set-up which includes aligning and securing large irregular work pieces having several interrelated dimensions, using jib cranes, 10-ton crane, straps and magnets.
  • Select speeds and feeds, tooling and operational sequences; lay out reference points and boring location.
  • Observe drilling or boring machine operations to detect any problems.
  • Verify conformance of machined work to specifications,
  • Use drawings and a wide variety of precision measuring instruments.
  • Exhibit proficient knowledge of machine shop practices, techniques, programming, machine operation and tooling.
  • Knowledge of machine processes and other techniques for maximizing efficiency during the machining of parts.
  • Measure and examine completed units to check for defects and ensure conformance to specifications, using precision instruments, such as micrometers and calipers.
  • Maintain machine tools in proper operational condition.
  • Evaluate machining procedures and recommend changes or modifications for improved efficiency or adaptability.
  • Confer with engineering, supervisory, or manufacturing personnel to exchange technical information.
  • Technology Skills

    • Fanuc G-code, M-code, computer programming and modifications. 

    Occupational Requirements

    • Mathematics— Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.
    • Dependability — Job requires being reliable, responsible, and dependable.
    • Production and Processing — Knowledge of machine processes and other techniques for maximizing efficiency during the machining of parts.
    • Knowledge — Knowledge of techniques, tools, and precision principles involved in the production of parts utilizing blueprints and/or drawings.
    • Analytical Thinking — The ability to analyze information using logic to address unexpected issues and problems.
    • Attention to Detail — The ability to be careful about detail and thorough in completing work tasks.
    • Innovation — Job requires creativity and alternative thinking to develop new ideas for and answers to production related problems.
    • Initiative — Job requires a willingness to take on responsibilities and challenges.

    Physical Requirements:

    • Must be able to lift up to 25 pounds on a regular basis.
    • Must be able to manipulate large parts with a crane using hooks, straps and magnets.
    • Must have manual dexterity including standing, bending, stooping, and reaching.
    • Must have excellent hand-eye coordination.
    • Safety glasses and steel toe shoes are required.

Salary.com Estimation for CNC Boring Bar Operator in Oak Creek, WI
$51,854 to $66,465
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