ISO 1721:1974
Current
The latest, up-to-date edition.
Rock drilling — Extension drill-steel equipment for percussive long-hole drilling — Reverse-buttress-threaded equipments 1 1/16 and 1 1/4 in (27 and 32 mm)
Hardcopy , PDF
English, French
01-08-1974
Specifies the basic dimensions for equipment. Gives a list of components; tabulates together with figures: shank adapters for central flushing, hexagon type and lug-shank type; extension rods; coupling sleeves; four-wing bits; reverse-buttress threads; hollow hexagonal bars for extension rods; hexagonal drill-steels.
| Committee |
ISO/TC 82
|
| DocumentType |
Standard
|
| Pages |
6
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| UNE 22664:1985 | Identical |
| 17/30341097 DC : 0 | BS ISO 18758-1 - MINING AND EARTH-MOVING MACHINERY - ROCK DRILL RIGS AND ROCK REINFORCEMENT RIGS - PART 1: TERMINOLOGY |
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