Introduction:
Geometric Dimensioning and Tolerance (GD&T) is a language used on mechanical
engineering drawings composed of symbols that are used to efficiently and
accurately communicate geometry requirements for associated features on
components and assemblies. GD&T is, and has been, successfully used for many
years in the automotive, aerospace, electronic and the commercial design and
manufacturing industries.
Success oriented industries and organizations which, require accurate and
common lines of communications between engineering, design, manufacturing
and quality should consider Geometric Dimensioning and Tolerance (GD&T) as
their mechanical drawing standard.