General | Tolerance Iso 2768-mk

&#34;m&#34; (medium): Applies to linear and angular dimensions.
&#34;K&#34;: Applies to geometric form and position tolerances.

1‑page summary: General Tolerances — ISO 2768‑m (medium/ks)

Scope

ISO 2768‑1 defines general tolerances for linear and angular dimensions on drawings when no specific tolerance is given. "m" = medium tolerance class; "k" = coarse for form and position? — ISO 2768 uses two parts: Part 1 (general tolerances — linear/angular) with tolerance classes f (fine), m (medium), c (coarse), v (very coarse); Part 2 (geometrical tolerances — form and position) with symbols for tolerances (no separate k). Here “mk” likely means linear class m and unspecified geometric class (commonly k is not part of ISO 2768 — confirm in standard).

5. Limitations & Exclusions

The following shall not be covered by ISO 2768-mk: general tolerance iso 2768-mk

This standard is best suited for general mechanical engineering applications where function allows for standard manufacturing accuracy without requiring extremely high precision. "m" (medium): Applies to linear and angular dimensions

Functional Requirements: The choice of tolerance class should always be guided by the functional requirements of the part. In some cases, even medium tolerance classes might be too loose. However, it is not a magic wand

"m" (medium): Applies to linear and angular dimensions.
"K": Applies to geometric form and position tolerances.

However, it is not a magic wand. Always ask yourself: “If this dimension drifts by 0.2mm, will my assembly fail?” If the answer is yes, add a specific tolerance (e.g., 10.0 ±0.01mm) directly next to that dimension.