What is GDNT and limit and fits

Question

Accepted Answer

GD&T stands for Geometric Dimensioning and Tolerancing. It is a system for defining and communicating engineering tolerances.

GD&T is a symbolic language used on engineering drawings to specify the allowable variations in form, size, and orientation of features.
Limit and fits are a system of standard tolerances used to control the dimensions of mating parts. They ensure proper fit and function.
GD&T and limit and fits are essential tools for ensuring the quality and interchangeability of manufactured parts.
Example: GD&T can be used to specify the flatness of a surface or the perpendicularity of a hole to a surface.
Example: Limit and fits can be used to ensure that a shaft fits properly into a hole with the right amount of clearance.

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