For general tolerancing, ISO 2768-1 (for linear dimensions) gets all the attention. But its lesser-discussed sibling, , handles features like angles, chamfers, and tapers. Ignoring it is a fast track to rejected parts or inflated machining costs.
(Note: ′ = minutes of arc. 60′ = 1 degree.) iso 2768 angular tolerance
The standard provides a table of . The Short Version (Angular Tolerance Table) For Shorter leg length up to the specified range, here are the rough equivalents (always consult the official standard for production): For general tolerancing, ISO 2768-1 (for linear dimensions)