DIN 335
DIN 335 specifies the dimensions for 90° countersinks made of high-speed steel. It defines sizes for shapes A and B, mainly for deburring, and shapes C and D for countersinking.
Details of DIN 335
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Field: Tool technology
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Scope: 90° countersinks
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Components: Material, dimensions, functional requirements
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Issue date: March 2024
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Responsible committee: NA 121‑01‑03 AA – Countersinks, counterbore tools, and reamers in high-speed steel
Changes and adaptations
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Updated normative references
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Added size d1 = 40 mm for shape C
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Corrected dimensioning in illustration 3
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Editorial revisions carried out
Application and benefits
DIN 335 is important for tool technology, ensuring countersinks can be used safely and efficiently. It contributes to improved safety and precision in drilling operations.
Additional information
Further information and the full standard are available on the website of the German Institute for Standardization (DIN).
Conclusion
DIN 335 ensures that countersinks conform to current standards and can be used safely. The standard enhances safety and efficiency in tool manufacturing.