ISO 235:1980

Parallel shank jobber and stub series drills and Morse taper shank drills

This secon edition, which superseded ISO 235-1:1975, incorporates draft Amendment 1. ISO 235 specifies in dimensions of the above mentioned drills. It comprises, for each type of these drills, three tables giving respectively the dimensions in millimetres, the dimensions in inches, the corrsponding length, in millimetres and in inches, set out as functions of diameter steps.