NF ISO 2540

NF ISO 2540

January 2004
Standard Cancelled

Centre drills for centre holes with protecting chamfer - Type B

Le présent document donne les dimensions des forets à centrer de type B et des trous de centre correspondants.

View the extract
Main informations

Collections

National standards and national normative documents

Publication date

January 2004

Number of pages

6 p.

Reference

NF ISO 2540

ICS Codes

25.100.30   Drills, countersinks, reamers

Classification index

E66-054

Print number

1 - 08/03/2004

International kinship

ISO 2540 :1973
Sumary
Centre drills for centre holes with protecting chamfer - Type B

Le présent document donne les dimensions des forets à centrer de type B et des trous de centre correspondants.
Replaced standards (2)
NF E60-051
June 1983
Published document Cancelled
Centre holes. Types A,B and R. Dimensions.

NF E66-051
June 1983
Standard Cancelled
Centre drills. Types A,B and R.

La présente norme donne les dimensions des forets à centrer : - pour centres sans chanfrein de protection - Type A - pour centres avec chanfrein de protection - Type B - pour centres à profil curviligne - Type R Les forets sont réalisés avec goujures droites ou hélicoïdales, à l'initiative du fabricant et, sauf spécification contraire, ces forets sont à coupe à droite.

Standard replaced by (1)
NF ISO 2540
February 2017
Standard Current
Centre drills for centre holes with protecting chamfer - Type B

ISO 2540:2016 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 can be straight or spiral at the option of manufacturer. Unless otherwise stated, these drills are right-hand cutting. Annex A gives 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.

Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ