: The shaft is always larger than the hole, requiring force or thermal expansion/contraction for assembly.
: High-precision location where parts need to be snug but removable. Examples : H7/k6 (locational transition for dowel pins). 2. ISO 286 Notation System Fit Tolerance
The ISO 286 Standard uses an alphanumeric code (e.g., ) to define fits. : The shaft is always larger than the
: The tolerance zones overlap; the resulting fit could be a slight clearance or a slight interference depending on the actual manufactured size. Fit Tolerance