BS ISO 3439:2003
Current
The latest, up-to-date edition.
Subland twist drills with cylindrical shanks for holes prior to tapping screw threads
Hardcopy , PDF
English
16-09-2003
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Foreword
1 Scope
2 Normative references
3 Dimensions
Bibliography
Specifies the dimensions of subland twist drills with cylindrical shanks for holes prior to tapping screw threads.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes 98/717348 DC (09/2003)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| SupersededBy | |
| Supersedes |
This International Standard lays down the dimensions of subland twist drills with cylindrical shanks for holes prior to tapping screw threads.
The drills have been designed to produce holes prior to tapping metric threads (coarse pitch series) over a selected range of M3 to M14.
This International Standard complements ISO2306.
Subland twist drills with Morse taper shanks for holes prior to tapping screw threads are dealt with in ISO3438.
| Standards | Relationship |
| ISO 3439:2003 | Identical |
| ISO 2306:1972 | Drills for use prior to tapping screw threads |
| ISO 3438:2013 | Subland twist drills for holes prior to tapping screw threads |
| ISO 273:1979 | Fasteners — Clearance holes for bolts and screws |
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