Lead Times & Tolerances

What affects delivery speed and how to specify tolerances for reliable builds

Faster Quotes and More Predictable Builds

Lead time and tolerance requirements are connected. Clear drawings and realistic tolerances reduce risk, lower cost, and improve delivery predictability. Use this page as a quick guide and confirm final specs during quoting.

Category Typical Guidance Notes
Quote Response Typically within 24 hours Complex assemblies or missing info may require clarifications
CNC Tolerance Capability Down to ±0.02 mm (±0.0008") on critical features Only specify tight tolerances where needed
Prototype Lead Time Fast turnaround options available Depends on complexity, material, quantity, and finish
Low-Volume Lead Time Planned to match build schedule Revision control and inspection requirements influence timing
Finishing Adds additional processing time Surface treatment and inspection standards vary by finish

What Increases Lead Time

  • Missing tolerances or unclear datums
  • Special materials or hard-to-source stock
  • Tight cosmetic requirements without definition
  • Finishes with thickness constraints on fits
  • Complex geometry requiring multiple setups

How to Speed Up Delivery

  • Provide STEP + drawing/PDF with critical features marked
  • Define material and finish upfront
  • Only tighten tolerances where function requires
  • Confirm any threads, inserts, and surface requirements
  • Share your target ship date and delivery location

Tolerance Tips

  • Use datums to control stack-up in assemblies
  • Keep general tolerances relaxed where possible
  • Plan finish thickness for tight fits and threads
  • Define surface roughness only on functional faces
  • Ask for DFM feedback before freezing the design

Related Pages

Quality & Inspection Tolerances & Inspection

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