ISO 722:1991
Rock drilling equipment — Hollow drill steels in bar form, hexagonal and round
OVERVIEW
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).
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 1991 |
| No. of Pages | 2 |
| ICS Classification | 77.140.60 Steel bars and rods 73.100.30 Equipment for drilling and mine excavation |
| Committee | ISO/TC 82 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |