³Ô¹Ïtv / ENGINEERING EXPLANATIONWorked example and model boundaryILLUSTRATIVE INPUTTop 0.12 mm; bottom 0.08 mm; depth 0.08 mmVolume = pi × h × (D² + Dd + d²) / 12About 0.000636696 mm³ per ideal cavityThe two diameter-based aspect ratios differ. Neither proves fill or drillingcapability.This example is a model explanation, not a quoted limit or an approval.Conceptual diagram, not to scale. Dimensions and examples are not manufacturing limits.