ISO 723:1991
Rock drilling equipment; forged collared shanks and corresponding chuck bushings for hollow hexagonal drill steels

Standard No.

ISO 723:1991

Release Date

1991

Published By

International Organization for Standardization (ISO)

Latest

ISO 723:1991

Scope

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).

ISO 723:1991 history

• 1991 ISO 723:1991 Rock drilling equipment; forged collared shanks and corresponding chuck bushings for hollow hexagonal drill steels
• 1974 ISO 723:1974 Rock drilling — Forged collared shanks and chuck bushings for hollow hexagonal drill-steels