Tag: Basic Dimensions

Dimensions Identified for Inspection

by Crystal Bemis on June 30, 2025.

What does it mean when a dimension is circled on a drawing—and how does it impact manufacturing? In this video, Jason explains the informal use of ovals as quality control symbols and what it means for how parts are made and inspected.

What Are Basic Dimensions and How Do They Work in GD&T?

by Tom Geiss on January 30, 2021.

A question we are often asked here at GD&T Basics is, “what is a basic dimension?” – These dimensions are often fairly confusing as they look very similar to other dimensions you may be familiar...

Position Tolerance and Basic Dimensions

by Seth Elder on November 12, 2020.

The video below is in response to a question that we received on our question line from Ash.   The question is as follows: “I regularly see drawings where spacing between a pair of holes is...