Norm

ISO 1721:1974 en

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)

31,57

Over deze norm

Status Definitief
Aantal pagina's 6
Commissie Mobiele transportwerktuigen
Gepubliceerd op 01-08-1974
Taal Engels
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.

Details

ICS-code 73.100.30
Nederlandse titel 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)
Engelse titel 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)

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