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ISO 494:1975
New product
ISO 494:1975 Parallel shank twist drills - Long series
standard by International Organization for Standardization, 02/01/1975
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Full Description
This International Standard lays down the dimensions of parallel shank twist drills, long series.
It supplements ISO 235/l, Parallel shank twist drills, jobber and stub series, Morse taper shank twist drills and core drills.
It comprises three tables giving respectively :
the recommended dimensions in millimetres;the recommended dimensions in inches;the corresponding lengths, in millimetres and in inches, set out as functions of diameter steps.