Iso 2768 Mk Official

The Silent Language of ISO 2768-mK

So use mK for the non-critical. But never forget — The parts that fail in the field are rarely the ones you toleranced tightly. They're the ones you assumed would behave.

But then comes a drawing block labeled:

— straightness, flatness, circularity, cylindricity, parallelism, perpendicularity, symmetry, runout. All the invisible governors that prevent a part from lying about its shape.

Honor it, but don't worship it.

But here's the deep cut:

It works — until it doesn't. Then the CMM doesn't care about your "general note." It only reports: out by 0.03 mm . iso 2768 mk

Because no one checks flatness on every sheet metal bracket. No one validates perpendicularity on a turned shaft — unless the fit screams otherwise.