This standard was last reviewed and confirmed in 2022. Therefore this version remains current.
ISO 494:2017 specifies the dimensions of cylindrical shank twist drills having working lengths in the long series.
The cylindrical shank jobber and stub series drills and Morse taper shank drills are given in ISO 235.
Status: PublishedPublication date: 2017-02
Edition: 3Number of pages: 6
Technical Committee: ISO/TC 29/SC 9 Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces
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