GD&T Tolerance Lookup (ISO 2768 / GB/T 1184)

Enter dimension to find general straightness, flatness, roundness, and cylindricity tolerances.

Straightness / Flatness (μm)

RangeGr.1 RaGr.1 TolGr.2 RaGr.2 TolGr.3 RaGr.3 TolGr.4 RaGr.4 TolGr.5 RaGr.5 Tol

Roundness / Cylindricity (μm)

RangeGr.0Gr.1Gr.2Gr.3Gr.4Gr.5Gr.6Gr.7Gr.8Gr.9