Next CNC Parts

Next CNC Parts

CNC Machining Tolerances Explained

Tolerance is one of the biggest drivers of CNC machining cost. A drawing with unnecessarily tight tolerances can increase quotation price, inspection time and supplier risk without improving the actual product.

Use tight tolerances only on features that affect fit, function or assembly

We focus on clear drawings, realistic lead times, practical supplier selection and communication that overseas buyers can rely on.

General tolerances are often enough for non-critical surfaces

We focus on clear drawings, realistic lead times, practical supplier selection and communication that overseas buyers can rely on.

Critical dimensions should be clearly marked on the drawing

We focus on clear drawings, realistic lead times, practical supplier selection and communication that overseas buyers can rely on.

Tolerance, surface finish and inspection requirements should be discussed before production

We focus on clear drawings, realistic lead times, practical supplier selection and communication that overseas buyers can rely on.

How We Support Your Project

  1. Review your drawings, material, quantity, tolerance and finish requirements.
  2. Match suitable CNC machining, sheet metal or finishing suppliers in China.
  3. Coordinate quotation details, lead time, payment terms and production notes.
  4. Follow production, arrange inspection planning and support export logistics.

Common Questions

Can I send NDA-protected drawings?

Yes. We treat customer drawings as confidential and can discuss NDA requirements before quotation.

Which file formats can you review?

PDF, STEP, IGES, X_T, DWG, DXF and ZIP files are suitable for initial review.

Do you support prototypes and small batches?

Yes. We support prototypes, pilot runs and low-volume production depending on material, tolerance and finish requirements.

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