TS EN ISO 6411
Technical drawings - Simplified representation of centre holes
This standard specifies the simplified representation of centre holes and their designation. Simplified representation of centre holes may be used particulary when it is not necessary to show the excat form and size and where the designation of standard size centre holes is sufficient for information..
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About This Item
TS EN ISO 6411 is the standard for the simplified representation and designation of centre holes in technical drawings. It is used when showing the full geometry is unnecessary and a standard centre-hole designation is enough for information. In practice, this helps drawings stay compact, readable, and consistent while still communicating the essential design intent.
How centre holes are treated in drawing practice
In general engineering drawing, centre holes are associated with turning, machining, and centring operations, especially on shaft ends and similar parts. Depending on the application, these features may need to be identified by position, type, and size. This standard provides a simplified way to present them when the exact form does not need to be drawn in detail and a standardised designation is sufficient for informational purposes.
Why designation matters more than full geometry in some cases
The value of this standard lies in balancing geometric detail with drawing efficiency. In technical documentation, a feature’s visual representation and its written designation do not always need the same level of detail. For centre holes, simplified representation reduces clutter while preserving the information needed for manufacturing and interpretation. That makes the standard useful for drawing standardisation, legibility, and a common technical language across design and production teams.
- Publication Date: 22.11.2000
- Standard Status: U (Yürürlükteki Standard/Standard)
- Publisher: TSE
- Document Language: tr, en, fr, de
- ICS Classification: 01.100.20 Makina Mühendisliği Çizimleri
- Pages: 8
- Source Standard: EN ISO 6411:1997
- International Equivalents: ISO 6411:1982 EQV--; EN ISO 6411:1997 EQV--; BS EN ISO 6411:1997 EQV--; NF E 04-116:1983 EQV NF E04-116:1998/AFNOR EQV--; DIN 332-10:1983 NEQ DIN ISO 6411:1997 EQV--; EN ISO 6411:1997 EQV--
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