Iso 2768-mh Tolerance Chart [updated] Instant

: If a feature is critical for function—like a bearing fit or a sealing surface—you should override this by adding a specific tolerance (e.g., ISO 286 ) directly to that dimension. General Tolerance - ISO 2768 1 & 2 - ZEISS Quality Forum

Why would an engineer specify "mh" instead of a tighter "ff" (fine/fine) or a looser "cL" (coarse/coarse)? iso 2768-mh tolerance chart

The "H" class defines the permissible limits for the form and position of features. : If a feature is critical for function—like