90.93 Standard confirmed Oct 31, 2022
ISO
ISO/TC 29/SC 9 Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces
International Standard
25.100.30 Drills, countersinks, reamers
ISO 235:2016 specifies the dimensions of the following three types of drills:
a) parallel shank drills, stub series;
b) parallel shank drills, jobber series;
c) Morse taper shank drills.
It comprises, for each type of drill mentioned above, three tables giving, respectively:
a) the dimensions in millimetres;
b) the dimension in inches;
c) the corresponding lengths, in millimetres and in inches, set out as functions of diameter steps.
PUBLISHED
ISO 235:2016
90.93
Standard confirmed
Oct 31, 2022