This standard has been reviewed* and then confirmed in 2013.
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.
Edition: 1 (Monolingual) ICS: 73.100.30 Status: Published Stage: 90.93 (2013-07-08) TC/SC: ISO/TC 82 Number of Pages: 6
No revision information available
No corrigenda or amendments available