ISO 1101:2017

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ISO 1101:2017 is an international standard that defines the language and rules for specifying geometrical tolerances in engineering drawings and 3D models. It's essentially a set of symbols and rules for specifying how much a manufactured part can deviate from its ideal geometric form, orientation, location, and run-out. This standard ensures that all parties involved in design and manufacturing understand the intended geometric requirements, leading to consistent and accurate parts.