Reference number
ISO 2306:1972
International Standard
ISO 2306:1972
Drills for use prior to tapping screw threads
Edition 1
1972-07
Read sample
ISO 2306:1972
7135
Published (Edition 1, 1972)
This publication was last reviewed and confirmed in 2022. Therefore this version remains current.

ISO 2306:1972

ISO 2306:1972
7135
Language
Format
CHF 42
Convert Swiss francs (CHF) to your currency

Abstract

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.

General information

  •  : Published
     : 1972-07
    : International Standard confirmed [90.93]
  •  : 1
     : 5
  • ISO/TC 29/SC 9
    25.100.30 
  • RSS updates

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