GB/T 4261-2004
ActiveCounterbores with Morse taper shanks and detachable pilots
带可换导柱的莫氏锥柄平底锪钻
Application Summary AI generated
GB/T 4261-2004 specifies the dimensions, tolerances, and technical requirements for counterbores with Morse taper shanks and detachable pilots. It is applied in mechanical manufacturing for producing flat-bottomed recesses around bolt holes or screw holes, particularly in metalworking operations where interchangeable pilots allow alignment with pre-drilled holes. This standard ensures interchangeability and precision in tooling used on drilling machines and lathes.
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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.