It keeps drawings clean. Engineers only need to specify tolerances for critical dimensions (like bearing fits), while "mk" handles the rest.
Key principles and application The standard is intended to be applied across an entire drawing by a single note, e.g., “Unless otherwise specified, tolerances according to ISO 2768‑m.” That directive relieves designers from marking tolerances on every dimension while still communicating acceptable manufacturing variation. Important application principles include: Tolerance Iso 2768 Mk Pdf
Understanding ISO 2768-mk: The Standard for General Geometrical Tolerances It keeps drawings clean
