Understanding geometric tolerances is an essential aspect for accurate measurement that cannot be overlooked. Geometric tolerances refer to the permissible range of errors in shape, positioning, and other factors. They are crucial information on drawings to accurately convey design intent. Geometric tolerances are classified into 15 types. In this article, ACCRETECH Thailand's Sales Engineer, Mr. Hitomi and Sales Manager, Ms. TIP will explain “True Position”,classified under positional tolerance.