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ISO 3439:1975

Subland twist drills with parallel shanks for holes prior to tapping screw threads

Publication date:   Sep 1, 1975

95.99 Withdrawal of Standard   Sep 1, 2003

General information

95.99 Withdrawal of Standard   Sep 1, 2003

ISO

ISO/TC 29 Small tools

International Standard

25.100.30   Drills, countersinks, reamers

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Scope

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.

Life cycle

NOW

WITHDRAWN
ISO 3439:1975
95.99 Withdrawal of Standard
Sep 1, 2003

REVISED BY

WITHDRAWN
ISO 3439:2003