Din Iso 13715 <LEGIT>

![Example symbol structure: A triangle-like figure with a line pointing to the edge, plus a numeric value.]

Enter . This standard is the universal language for defining the condition of undefined edges on technical drawings. din iso 13715

Disclaimer: This post is for informational purposes. Always refer to the latest official DIN ISO 13715 standard document for absolute compliance. Always refer to the latest official DIN ISO

Let’s break down what it is, why it matters, and how to read its symbols. Officially titled "Technical product documentation — Indications for undefined edges," DIN ISO 13715 specifies how to indicate the permissible condition of edges that are not explicitly dimensioned elsewhere on the drawing. In the world of precision manufacturing, assuming an

In the world of precision manufacturing, assuming an edge is sharp can lead to burrs, injuries, and assembly issues. Conversely, assuming an edge is broken (chamfered or rounded) without a specification can lead to unnecessary machining costs.

For sharp edges that must cut (e.g., cutting tools, scrapers), write: "Edge max R 0.05" or "Sharp edge permitted – handle with care" (though the latter is rare in modern standards). The Most Common Mistake Do not write: "Break all sharp edges." This is subjective. Does "break" mean 0.1 mm or 1.0 mm? It depends on who is reading.

Here is what the symbols mean: