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Homepage>BS Standards>25 MANUFACTURING ENGINEERING>25.100 Cutting tools>25.100.30 Drills, countersinks, reamers>BS ISO 866:2016 Centre drills for centre holes without protecting chamfers. Type A
immediate downloadReleased: 2016-08-31
BS ISO 866:2016 Centre drills for centre holes without protecting chamfers. Type A

BS ISO 866:2016

Centre drills for centre holes without protecting chamfers. Type A

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English Secure PDF
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181.70 EUR
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Standard number:BS ISO 866:2016
Pages:18
Released:2016-08-31
ISBN:978 0 580 83626 8
Status:Standard
DESCRIPTION

BS ISO 866:2016


This standard BS ISO 866:2016 Centre drills for centre holes without protecting chamfers. Type A is classified in these ICS categories:
  • 25.100.30 Drills, countersinks, reamers

This International Standard 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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