NF ISO 866

NF ISO 866

January 2004
Standard Cancelled

Centre drills for centre holes without protecting chamfers - Type A

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

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Main informations

Collections

National standards and national normative documents

Publication date

January 2004

Number of pages

6 p.

Reference

NF ISO 866

ICS Codes

25.100.30   Drills, countersinks, reamers

Classification index

E66-053

Print number

1 - 08/03/2004

International kinship

ISO 866:1975
Sumary
Centre drills for centre holes without protecting chamfers - Type A

Le présent document donne les dimensions des forets à centrer de type A et des trous de centre correspondants.
Standard replaced by (1)
NF ISO 866
November 2016
Standard Current
Centre drills for centre holes without protecting chamfers - Type A

ISO 866:2016 specifies the dimensions of centre drills for centre holes without protecting chamfers (Type A). It covers only metric dimensions, which are regarded as the only recommended dimensions in the future for this type of drill. The flutes may be straight or spiral, depending on the manufacturer's discretion. Unless otherwise indicated, these drills will be right-hand cutting. Recommended dimensions for Type A centre holes, which can be obtained by a rational use of the centre drills listed in this International Standard, are given in Annex A.

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