ISO Conversion

ISO/DIN 7154 "h" Tolerance Metric Conversion Table

Over Inch Over mm Up to Inch Up to mm In Inch h8 In mm h8 In Inch h7 In mm h7 In Inch H6 In mm h6
    .0024 0.06 .0003 0.008 .0002 0.005 - -
.0024 0.06 .0591 1.5 .0004 0.011 .0003 0.007 .0002 0.005
.0591 1.5 .1181 3 .0006 0.014 .0004 0.010 .0002 0.006
.1181 3 .2362 6 .0007 0.018 .0005 0.012 .0003 0.008
.2362 6 .3937 10 .0009 0.022 .0006 0.015 .0004 0.009
.3937 10 .7087 18 .0011 0.027 .0007 0.018 .0004 0.011
.7087 18 1.1811 30 .0013 0.033 .0008 0.021 .0006 0.016
1.1811 30 1.9685 50 .0015 0.039 .0010 0.025 .0005 0.013
1.9685 50 3.1496 80 .0018 0.046 .0012 0.030 .0007 0.019
3.1496 80 3.9370 100 .0021 0.054 .0014 0.035 .0009 0.022

Actual Evaluation, in Inches, of Tolerance for Practical Limits 1 CPK (or (=/-3 Sigma)
Means 99.2% of Total is Within This Tolerance if the X Bar is Totaly Centered.

Actual Evaluation.jpg (208347 bytes)

* Any Centering Error Will Reduce The Stated Bands


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