GDT ASMEY145MCHS_EN769GXU47Tpdf Shown below are the most common symbols that are used with geometric tolerancing and other related dimensional requirements on engineering drawings. N
For gd t not affected_when to revise dwg guidelines3_21_02.ppt GUIDELINES TO DETERMINE IF A DRAWING NEEDS TO BE UPDATED WHEN GD&T IS NOT AFFECTED BY ENGINEERING CHANGE