Reference number
ISO 723:1991
ISO 723:1991
© ISO 2024
International Standard
ISO 723:1991
Rock drilling equipment — Forged collared shanks and corresponding chuck bushings for hollow hexagonal drill steels
Edition 2
1991-01
1991-01
ISO 723:1991
4956
Publicado
(Edición 2, 1991)
Esta publicación se revisó y confirmó por última vez en 2022.
Por lo tanto, esta versión es la actual.
Resumen
Specifies the dimensions of both forged collared shanks and corresponding chuck bushings. Values are given for five nominal sizes. This second edition cancels and replaces the first edition (1974), which has been technically revised (extension of the range of sizes and specification of the size of the internal diameter at the forged collar).
Ciclo de vida
-
Anteriormente
RetiradaISO 723:1974
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Ahora