General Tolerance Iso 2768-mk Jun 2026

values. Designers only need to write "ISO 2768-mK" in the title block.

ISO 2768 is an international standard that simplifies engineering drawings by providing standard tolerance values for linear and geometric dimensions. This eliminates the need to specify tolerances for every single dimension on a drawing.

Would you like a printable one‑page PDF with the exact ISO table values filled in (I will include the numeric tables from the standard)? general tolerance iso 2768-mk

: Specifies general tolerances for geometrical characteristics like straightness, flatness, and symmetry. The uppercase letter 'K' represents the medium geometrical tolerance class. 2. Linear Dimensions Tolerances (ISO 2768-1, Class m)

It prevents "over-tolerancing." If a non-critical bracket is made to a "Fine" (f) tolerance when "Medium" (m) would do, the price can double due to increased inspection and slower machining. 5. Critical Limitations values

The code is broken down into two distinct classes:

If you are currently setting up a design pipeline, let me know: This eliminates the need to specify tolerances for

This section covers geometric deviations (form and position) for features without individual tolerance indications. It is divided into three classes:

These apply strictly to the rounding or beveling of sharp edges. Nominal Dimension Range ( Tolerance Limit for Class "m" ( ±0.2plus or minus 0.2 ±0.5plus or minus 0.5 ±1.0plus or minus 1.0 3. Angular Dimensions

is the go-to default for general machined parts in most workshops. It balances cost, inspectability, and functionality. Always verify that your feature tolerances (especially form) are adequate for assembly – if not, add explicit GD&T.

These tolerances apply to internal sizes, external sizes, steps, diameters, and radii. Nominal Size Range (mm) Tolerance Limits for Class m (mm) 120 to 400 400 to 1000 1000 to 2000 2000 to 4000 2. Broken Edges (External Radii and Chamfer Heights)