Quality Control Checklist for Custom CNC Metal Parts

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Quality Control Checklist for Custom CNC Metal Parts

Quality Control

Quality control for custom CNC metal parts starts before machining. Sendot Technology combines drawing review, in-process inspection and final verification to help parts meet functional and appearance requirements.

Before Machining

  • Confirm drawings, revision numbers, material grade and finish requirements.
  • Identify critical dimensions, threads, sealing surfaces and assembly interfaces.
  • Review tolerance risk and fixture strategy before production starts.

During Production

  • Inspect first articles before continuing with batch machining.
  • Monitor critical dimensions during machining, not only at final inspection.
  • Keep machining parameters stable for repeatability across small-batch and production runs.

Final Inspection and Packing

  • Check critical dimensions, surface finish, threads, holes and cosmetic surfaces.
  • Confirm the correct quantity, part marking, packaging and documentation.
  • Protect finished parts from scratches, oxidation and handling damage during shipment.

For projects with tighter tolerances or assembly-critical features, Sendot can discuss inspection points before quoting so quality requirements are clear from the beginning.

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