BH GSO ISO 2540:2016
ISO 2540:1973
Bahraini Standard
Current Edition
·
Approved on
08 February 2016
Centre drills for centre holes with protecting chamfer -- Type B
BH GSO ISO 2540:2016 Files
English
2 Pages
Current Edition
Reference Language
29.5 BHD
BH GSO ISO 2540:2016 Scope
This International Standard specifies the dimensions of centre drills for centre holes with protecting chamfer — Type B.
It covers only metric dimensions, regarded as the only recommended dimensions in the future for this type of drills.
The flutes may be straight or spiral at the option of the manufacturer.
Unless otherwise stated these drills will be right-hand cutting.
This International Standard includes an Annex giving the recommended dimensions for the centre holes. Type B, which can be obtained by a rational use of the centre drills listed in this International Standard.
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