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SRPS M.B1.003:1988

Drills for use prior to tapping screw threads

Jan 30, 1988
Jan 30, 1988
95.99   Withdrawal of Standard   Jul 30, 2021

General information

95.99     Jul 30, 2021

ISS

M010

International Standard

25.100.30  

Serbian  

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Scope

Specifies the sizes of these drills for ISO metric threads (tables 1 and 2). ISO inch threads (tables 3 and 4) and pipe threads (tables 5 and 6). Applies to screw threads of normal length of engagement, the drill diamter being approximately equal to the nominal diameter of the thread minus the pitch. The sizes (except for those sizes indicated by an asterisk) have been selected from ISO 235 and are to be used in the future.

Life cycle

NOW

WITHDRAWN
SRPS M.B1.003:1988
95.99 Withdrawal of Standard
Jul 30, 2021

Related project

Adopted from ISO 2306:1972