Abstract Preview

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.

General information

  • Status :  Published
    Publication date : 1974-09
  • Edition : 1
    Number of pages : 6
  • :
    ISO/TC 82
  • 73.100.30
    Equipment for drilling and mine excavation

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Format Language
  • CHF38

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