QUALIFICATIONS: Applicants will be rated in accordance with the OPM Qualification Standard Handbook X-118C for the WG-3400 Machine Tool Work Family. Although a specific length of time and experience is not required for most blue-collar positions, you must meet any screen-out element listed, and show through experience and training that you possess the quality level of knowledge and skill necessary to perform the duties of the position at the level for which you are applying. Qualification requirements emphasis is on the quality of experience, not necessarily the length of time.

The screen out element for this position is the ability to do the work of a Machinist (Welder) without more than normal supervision.

JOB ELEMENTS: Your qualifications will be evaluated on the basis of your level of knowledge, skills, abilities and/or competencies in the following areas:

  • Ability to measure and lay out materials, tools, steps, etc., needed to perform assignments. Ability to apply technical practices in the performance of assigned work. Ability to use mechanical shop drawings. Ability to use hand tools for machine shop. Ability to lay out reference points, lines, dimensions, and angles using shop mathematics and handbook formulas.
  • Ability to clean work area and/or job site upon completion of work. Ability to select and set up welding equipment, machine tools, and cutting tools. Ability to perform precision handwork to fit, finish, and assemble machined parts and equipment. Ability to use machine drawings, technical manuals, and similar guides.
  • Knowledge of tools, equipment, and materials accounting and security and ability to operate machine tools. Knowledge of the nature and properties of metals required for work to be performed. Practical knowledge of and skill in applying the full range of conventional and/or numerically controlled machining principles, processes, and techniques, in addition to welding procedures.
  • Knowledge of how numerous metals, metal alloys and other materials react to different machine tools and processes and techniques. Knowledge of operating characteristics and design of a wide range of aircraft equipment. Knowledge of safety and security requirements as outlined in applicable standards, regulations and technical orders. Knowledge of USAF Technical Order Program and its procedures.
  • Skill in planning work sequences. Skill in operating a wide variety of conventional and/or NC machine tools. Skill in using measuring instruments to maintain precise dimensions. Skill in repairing, welding, and machining a wide variety of aircraft components, parts and non-powered AGE equipment.
  • Skill in setting up and operating various machine tools used in the machinist trade to manufacture or remachine aircraft components and parts. Skill in aligning and making fit-up when reassembling aircraft components and non-powered AGE equipment.


Works in machine shop areas or other enclosed areas which are sometimes noisy, dirty, or unheated. The employee is exposed to eye, skin, nose, and lung irritations from coolants, lubricants, and abrasive compounds, and to possible injuries and bums from flying metal chips, abrasive particles, and hot metal. The employee is also frequently exposed to the possibility of receiving cuts and serious injuries to hands and fingers from accidents while operating machines. To minimize or eliminate the effects of some of these conditions, the machinist follows numerous safety practices and wears or uses various protective devices such as machine tool shields, hard hats, safety glasses, gloves, face shields, hearing protection devices, and respirators. These devices may be uncomfortable and may be worn for Iong periods of time.


Works in tiring positions for prolonged periods. The work requires frequent standing, bending, stooping, crouching, and arm movement. Some work may be occasionally performed in cramped areas, on temporary platforms, or overhead. The employee frequently lifts and carries items weighing up to 40 pounds and occasionally lifts heavier items with assistance.

PART-TIME OR UNPAID EXPERIENCE: Credit will be given for appropriate unpaid and or part-time work. You must clearly identify the duties and responsibilities in each position held and the total number of hours per week.

VOLUNTEER WORK EXPERIENCE: Refers to paid and unpaid experience, including volunteer work done through National Service Programs (i.e., Peace Corps, AmeriCorps) and other organizations (e.g., professional; philanthropic; religious; spiritual; community; student and social). Volunteer work helps build critical competencies, knowledge and skills that can provide valuable training and experience that translates directly to paid employment.You will receive credit for all qualifying experience, including volunteer experience.