Specifies the material for and dimensions of equipment for drilling in solid or weakly fissured medium hard or hard formations to depths of 1200 m to 1500 m. Applies to equipment with outer bit diameters of 46 mm, 59 mm, 76 mm and 93 mm with corresponding core diameters from 24 mm to 59 mm.
Status: PublishedPublication date: 1992-10
Edition: 1Number of pages: 30
Technical Committee: ISO/TC 82 Mining
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