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sklademVydáno: 2016-11-30
BS ISO 2540:2016
Centre drills for centre holes with protecting chamfer. Type B
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| Označení normy: | BS ISO 2540:2016 |
| Počet stran: | 16 |
| Vydáno: | 2016-11-30 |
| ISBN: | 978 0 580 83627 5 |
| Status: | Standard |
DESCRIPTION
BS ISO 2540:2016
This standard BS ISO 2540:2016 Centre drills for centre holes with protecting chamfer. Type B is classified in these ICS categories:
- 25.100.30 Drills, countersinks, reamers
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 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.