Iso 2768-mh Tolerance Chart Better | No Survey

: Stands for Medium precision for linear and angular dimensions (Part 1).

"If I write ISO 2768-mh, I never have to tolerance diameters." Reality: Diameters (like a Ø10mm hole) follow the SAME linear chart. A Ø10mm hole could be Ø10.2mm. That is an H11 tolerance loose fit. For a running fit, you still need an explicit H7 or G6. iso 2768-mh tolerance chart

Angles are treated slightly differently. For Class 'm', the tolerance is expressed in millimeters per millimeter of the shorter side. : Stands for Medium precision for linear and

Class H is the highest precision geometric tolerance class. Values apply to features (flatness, straightness, perpendicularity, symmetry, circular runout) unless a tighter tolerance is specified. iso 2768-mh tolerance chart