ISO 722:1991-ed.3.0

Rock drilling equipment — Hollow drill steels in bar form, hexagonal and round

STANDARD published on 24.1.1991

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electronic design (pdf) (65.00 USD)
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The information about the standard:

Designation standards: ISO 722:1991-ed.3.0
Publication date standards: 24.1.1991
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Category: Technical standards ISO

Annotation of standard text ISO 722:1991-ed.3.0 :

Description / Abstract: Specifies the dimensions for seven nominal sizes. This third edition cancels and replaces the second edition (1985), which has been technically revised (addition of round drill steels and extension of the range of sizes).