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ISO 3438:2013

Subland twist drills for holes prior to tapping screw threads

Publication date:   May 2, 2013

General information

90.60 Close of review   Jun 4, 2024

ISO

ISO/TC 29/SC 9 Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces

International Standard

25.100.30   Drills, countersinks, reamers

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Scope

ISO 3438:2013 specifies the dimensions of subland twist drills with Morse taper shanks and cylindrical shanks for holes prior to tapping screw threads.
The drills are designed to produce holes prior to tapping metric threads (coarse pitch series) over a selected range of:

M8 to M30 for subland twist drills with Morse taper shanks;
M3 to M14 for subland twist drills with cylindrical shanks.

ISO 3438:2013 complements ISO 2306.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3438:2003

WITHDRAWN
ISO 3439:2003

NOW

PUBLISHED
ISO 3438:2013
90.60 Close of review
Jun 4, 2024