# GD & T

## What Is Concentricity & How To Measure It

Concentricity is the measure of how true a geometric shape is to its ideal form. The concentricity value can be calculated by using two diameters …

## Projected Tolerance Zone In GD & T

A projected tolerance zone is used in threaded holes to specify the projected area that this tolerance will cover. This ensures that the clearance hole …

## Tolerance Zone In GD&T [ Difference Between Rectangular Tolerance Zone And Circular Tolerance Zone

One of the main questions that come to everyone’s mind is why should we migrate to GD&T? Are there any benefits, or is it to …

## Feature Control Frame In GD & T

First thing first, you can not simply show any GD & T without a feature control frame. The feature control frame is the medium through …

## Cylindricity Tolerance In GD&T: Definition, Use, Measurement, And Examples

Cyclindricity tolerance plays a big in the proper assembling of cylindrical parts. If cylindricity tolerance is not considered, then there are chances that parts may …

## What Is Circularity Tolerance In GD&T: Definition, Use, Measurement, And Examples

You all might have noticed that sometimes it’s very difficult to insert a circular object into its counterparts. Right? This is all because the circular …

## What Is Flatness Tolerance In GD & T

No surface can be made perfectly flat. Right? It’s next to impossible to make a perfectly flat surface. We have to have some tolerance on …

## GD&T Symbols With Examples

GD&T ( Geometrical Dimensions And Tolerances ) is the new vocabulary of engineering drawings. This is the language that your drawings speak. How do they …

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