ISO 1722:1974

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)

Publication date: Sep 1, 1974

General information

Current stage: 90.93 Effective date: Dec 6, 2022

Originator: ISO

Owner: ISO/TC 82

Type: International Standard

ICS: 73.100.30

Languages: French English

Buying

Status: Published

PDF - EC$120.40

Paper - EC$120.40

PDF and Paper - EC$240.80

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Scope

Specifies the basic dimensions for equipment. Gives a list of components; tabulates together with figures: size of drill-steel in bar form; lengths of extension rods; coupling sleeves; bit diameters (four-wing bits); reverse-buttress threads; hollow hexagonal bars for extension rods.

Life cycle

NOW

PUBLISHED
ISO 1722:1974
90.93 Standard confirmed
Dec 6, 2022

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