Tolerances are about functional intent — not just smaller numbers.
Where tight tolerances add cost
- Additional setups and measurements
- Slower feeds and more finishing passes
- More scrap risk
What to do instead
- Tighten only the dimensions that affect fit and function
- Use notes for general tolerance where appropriate
- Call out surface finish only where it matters
If you want help, send your drawing/CAD and tell us which features must mate.