International Standard
ISO 721:1991
Rock drilling equipment — Integral stems
Reference number
ISO 721:1991
Edition 2
1991-01
© ISO 2024
International Standard
Read sample
Published (Edition 2, 1991)
This standard was last reviewed and confirmed in 2022. Therefore this version remains current.

ISO 721:1991

Format
Language
CHF 42
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 1991-01
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 2
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 82
    ICS :
    73.100.30 
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