Standard Swedish standard · SS-ISO 1722:2020

Rock drilling — Extension drill-steel equipment for percussive long-hole drilling — Reverse-buttress-threaded equipments 1 1/2 to 2 1/2 in (38 to 64 mm) (ISO 1722:1974, IDT)

Status: Valid

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Standard Swedish standard · SS-ISO 1722:2020

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Scope

This International Standard specifies the basic dimensions for reverse-buttress-threaded extension
drill-steel equipment for percussive long-hole drilling of the following nominal sizes :
1 1/2 in light (38 mm)
1 3/4 in light (45 mm)
2 1/4 in light (52 mm)
2 1/2 in light (64 mm)

Subjects

Drilling and mine excavation (73.100.30)

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Rock drilling — Extension drill-steel equipment for percussive long-hole drilling — Reverse-buttress-threaded equipments 1 1/2 to 2 1/2 in (38 to 64 mm) (ISO 1722:1974, IDT)

Subjects

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