Machinist
Posted Dec 4, 2025 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about your machining experience. What machines and controls have you run?
What they are checking: Whether their skill set covers the CNC mills, lathes and controls this shop likely runs.
Tell me about a time you had a crash or a near miss on a machine. What did you learn?
What they are checking: Whether they are honest about mistakes and have built safe habits from them.
How do you keep your work area and tools organized and safe?
What they are checking: Whether they keep a clean, safe workspace that supports quality and efficiency.
What would you do
Your part measures out of tolerance after a few pieces. How do you figure out why?
What they are checking: Whether they troubleshoot tool wear, offsets, heat and fixturing logically.
An engineer hands you a print that you think will be very hard to make as drawn. What do you do?
What they are checking: Whether they give useful manufacturability feedback to engineering instead of struggling silently.
About the work
Walk me through how you set up a CNC mill for a new job, from the print to the first good part.
What they are checking: Whether they can set up independently with proper work offsets, tools and first-piece checks.
How comfortable are you reading blueprints with GD&T? Explain what a true position callout means.
What they are checking: Whether they can read complex prints accurately, since precision parts depend on it.
Have you written or edited G-code at the machine, or used CAM software?
What they are checking: Whether they can make program adjustments safely rather than only pressing cycle start.
What inspection tools do you use to check your work, and how often do you check?
What they are checking: Whether they own their part quality instead of relying on inspectors to catch problems.
How do you hold tight tolerances on a thin or delicate part?
What they are checking: Whether they understand fixturing, cutting forces and material behavior on challenging parts.
Practice this interview out loud.
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Practice this out loudThe full job description
As published by Plexus.