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ISO 721:1991

Rock drilling equipment — Integral stems

Jan 17, 1991

General information

90.93     Dec 6, 2022

ISO

ISO/TC 82

International Standard

73.100.30  

French   English  

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Published

Language in which you want to receive the document.

Scope

Specifies the dimensions. The 19 mm hexagonal integral stems with forged collared shank shall comply with the dimensions shown in figure 1 and given in table 1. The 22 mm stems shall comply with the dimensions shown in figure 2 and given in table 2. The 25 mm stems shall comply with the dimensions shown in figure 3 and given in table 3.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 721:1974

NOW

PUBLISHED
ISO 721:1991
90.93 Standard confirmed
Dec 6, 2022

National adoptions

SSH ISO 721:2009  
DPS

Rock drilling equipment — Integral stems

60.60 Standard published

DPS/KT 133 more