# ISO 3439:1975 — Withdrawn and superseded ISO standards

For ISO 3439:1975, item title is Subland twist drills with parallel shanks for holes prior to tapping screw threads; status code is 9599; successor is ISO 3439:2003; withdrawn / published date is 1975-09-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3439:1975 _(verified: appears in the quote below)_
- **Item title:** Subland twist drills with parallel shanks for holes prior to tapping screw threads _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 3439:2003
- **Withdrawn / published date:** 1975-09-01 _(verified: appears in the quote below)_

## What the source says

> 8758,IS,,ISO 3439:1975,Subland twist drills with parallel shanks for holes prior to tapping screw threads,Forets étagés à queue cylindrique pour avant-trous de taraudage,1975-09-01,1,['25.100.30'],ISO/TC 29,9599,,[31360],"['en','fr']",1,"<p>Lays down only metric dimensions, which are the only recommended dimensions in the future for these subland twist drills. The drills have been designed to produce holes prior to tapping metric threads over selected range of M 3 to M 14. Unless otherwise stated, these drills will be rigth-hand cutting. Supplements ISO 2306.</p>"

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).