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GD&T Symbols

 

Symbols in GD&T

  • GD&T has 14 geometric characteristic symbols.
  • Various symbols used to specify tolerance zones are given below
    • Form
    • Position
    • Profile
    • Orientation
    • Runout

 

 

 

Straightness

Straightness describes a condition where an element of a surface or an axis is a straight line.