GB/T 4263-2004
ActiveCountersinks，90°，with parallel shanks and solid pilots
带整体导柱的直柄90°锥面锪钻
Application Summary AI generated
This standard specifies the dimensions, tolerances, and technical requirements for 90° countersinks with parallel shanks and solid pilots. It is applied in manufacturing and metalworking industries for creating conical recesses in workpieces to accommodate flathead screws or rivets, ensuring proper seating and flush assembly. The standard is used by tool manufacturers and machinists for production and quality control of these specific cutting tools.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.