Iso 2768 -2 Review

For circular runout, classes H, K, L correspond to specific tolerance values (see Section 5). 4. Toleranced Geometrical Characteristics The following characteristics are covered (all values in mm, unless stated otherwise). Example values for class K (medium) – typical for parts up to nominal size 100 mm:

| Class | Description | Typical Application | |-------|-------------|----------------------| | | Precision | High-precision machining | | K | Standard (most common) | General machining | | L | Coarse | Rough machining / castings | iso 2768 -2

| Class | Runout tolerance (mm) | |-------|------------------------| | H | 0.05 | | K | 0.10 | | L | 0.20 | For circular runout, classes H, K, L correspond