International Standard
ISO 2306:1972
Drills for use prior to tapping screw threads
Reference number
ISO 2306:1972
ISO 2306:1972
Edición 1
1972-07
1972-07
© ISO 2024
International Standard
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ISO 2306:1972
7135
No disponible en español
Publicado
(Edición 1, 1972)
Esta norma se revisó y confirmó por última vez en 2022.
Por lo tanto, esta versión es la actual.
Resumen
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.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1972-07Etapa: Norma Internacional confirmada [90.93]
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Edición: 1Número de páginas: 5
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Comité Técnico :ISO/TC 29/SC 9ICS :25.100.30
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Ciclo de vida
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