ISO 722:1991 (R2022)
Active , Confirmed Standard
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ISO 722:1991 (R2022)

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

Summary

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).

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 01/24/1991
Confirmation Date 12/06/2022
Edition 3
Page Count 2
EAN ---
ISBN ---
Weight (in grams) ---
No products.

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