Tolerance Charts

Basic sizeUnitsmminches

TypeHoleShaft DeviationABCCDDEEFFFGGHJSJKMNPRSTUVXYZZAZBZC Grade123456789101112131415161718 Calculate

Tolerance diagram

Full H hole chart

Full h shaft chart

Each size band excludes its lower bound and includes its upper bound. A dash means that size/grade combination is not tabulated here. Some deviations have a limited size range. Inch figures are conversions of ISO metric values, not ANSI fit classes.