Wire Drawing & Rod Processing worked example

Diameter Tolerance Margin with actual drawn wire diameter of 310 units: a worked example

This scenario runs the diameter tolerance margin calculation on the strong side: actual drawn wire diameter of 310 units, with every other input held at its documented default. Use it when diameter tolerance margin in wire drawing and rod processing needs a clean margin number for a wire drawing and rod processing go / no-go review.

The inputs for this scenario

  • Actual drawn wire diameter: 310 units (raised for this scenario; the documented default is 125)
  • Minimum spec diameter: 100 units (unchanged)
  • Nominal reference diameter: 100 units (unchanged)

Working through the calculation

  • Applying the documented formula (Diameter Tolerance Margin margin = available value - required value) to the inputs above produces each figure below.
  • At this operating point the engine returns 210 % for margin, the number this scenario is built around.
  • At this operating point the engine returns 210 value for absolute margin.
  • At this operating point the engine returns 310 value for available amount.
  • At this operating point the engine returns 100 value for required amount.

How this compares with the baseline

  • Against the tool's baseline example, where actual drawn wire diameter sits at 125 units and the headline result is 25 %, this scenario comes in 740% above the baseline at 210 %.
  • Use it during die setup, first-article checks, or periodic in-process gauging to confirm how much tolerance headroom a drawing pass still has. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Margin: 210 % (headline result)
  • Absolute margin: 210 value
  • Available amount: 310 value
  • Required amount: 100 value

Run it with your numbers

  • Every input above is editable in the live Diameter Tolerance Margin calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.