CNC Mill Set-Up Operator
Listed on 2026-07-13
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Manufacturing / Production
Manufacturing & Industrial Operations, Production QC/QA, Machine Operator, Maintenance Technician / Mechanic
Job Description
Brooks Instrument (), an industry leader in flow and pressure instrumentation for critical applications, is seeking candidates for a CNC Mill Setup position that will be based at our manufacturing location in Corona, California. Along with this location, the company has its headquarters based in Hatfield, Pennsylvania (suburban Philadelphia) and has manufacturing locations in Hungary, Malaysia, and Korea. The company also maintains sales and service offices throughout the world.
Our high‑tech products are used in laboratory and process applications in end markets such as oil & gas, petrochemical, medical devices, wastewater, life sciences, and analytical instruments.
To operate Mill machines at first article proven stage to produce scheduled production rate.
First Shift5 am – 1:30 pm
Essential Duties and Responsibilities- Marginal position functions that are not included among the essential duties and responsibilities in this position description are also requirements of this position.
- Must understand different types of machine controls and functions.
- Must understand various types of work (material) holdings.
- Must understand different types of materials.
- Must understand various types of tool holdings.
- Must understand various types of cutting cycles (milling, drilling, tapping, boring, thread milling and surfacing etc.).
- Must have basic understanding about MACRO programs.
- Must have complete understanding of work offset (G10 Lx).
- Must have complete understanding of TOOL offset and WORK offset.
- Must have knowledge of replacing cutting tools and setting proper tool offsets.
- Must have advanced knowledge about G code and M code.
- Must have advanced knowledge about different machining cycles.
- Must be able to identify NC programs that are currently in production.
- Must understand advanced GDT and advanced blueprint reading.
- Must be able to perform intermediate inspections with standard inspection tools (calipers, micrometers, drop indicators, pin gauges, thread gauges, height gauges, optical comparator, bore gauges, etc.).
- Must be able to analyze CMM report and must be able to make adjustments to achieve manufacturing requirements.
- Must be able to perform minor setup changes.
- Must understand production related documents and update current (travelers, blueprints, tool maintenance log, daily production log).
- Must perform required data logins to designated MRP (E2) system.
- Maintains proper tank level and concentration of coolant.
- Detects and reports defective materials or questionable conditions to the department leads or supervisor.
- Maintains the work area and equipment in a clean orderly condition and follows prescribed safety regulations.
- Performs job assignments in accordance with Job Travelers and work instructions.
- Must submit a part to be inspected (in process inspection) per each shift that worked on.
- Initial, stamp and date all documents as applicable.
Novice/Intermediate level:
- Cutting tool knowledge
- Knowledge of inspection skills
- Knowledge of different CNC controls
- Knowledge of different materials
- Intermediate math skills
- Blueprint reading
- Knowledge of routing
- Knowledgeable of the applicable QMS policies and procedures applicable to the position
- Trained in the nonconforming material procedure
- The description of the physical demands and the work environment characteristics here represent those that must be met by an employee to successfully perform and those an employee encounters while performing the essential functions of this position. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
- While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to sit. The employee is occasionally required to stand; walk; use hands to finger, handle, or feel; reach with hands and arms; and stoop or crouch. The employee must frequently lift and/or move up to 10 pounds and occasionally lift and/or move up to 75 pounds.
Specific vision abilities required by this job include close vision, color vision, and ability to adjust focus. - While performing…
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