The "h" class defines the general tolerances for geometric characteristics. : Up to 10 mm: 0.1 mm 10 to 30 mm: 0.2 mm 30 to 100 mm: 0.4 mm 100 to 300 mm: 0.8 mm 300 to 1000 mm: 1.2 mm
The following tolerances apply to linear dimensions such as external sizes, internal sizes, step sizes, diameters, and radii. Nominal Size Range (mm) Tolerance (± mm) Over 3 to 6 Over 6 to 30 Over 30 to 120 Over 120 to 400 Over 400 to 1000 Over 1000 to 2000 Over 2000 to 4000 2. External Radii and Chamfer Heights
Linear tolerances (m), nominal size L (mm) → tolerance ±:
Exceeding these tolerances does not automatically mean a part is rejected; it only leads to rejection if the part's function is impaired.