This International Standard specifies the basic dimensions of rope threaded drill steel equipment, for percussive drilling, of the following nominal sizes: 22 mm 25 mm light 25 mm 28 mm light 28 mm 32 mm light 32 mm 38 mm This equipment comprises mainly hexagonal shank rods, extension rods, coupling sleeves and drill bits.
GSO ISO 10207:2013 history
2013GSO ISO 10207:2013 Rock drilling equipment -- Rope threaded drill steel equipment for percussive drilling, nominal sizes 22 mm to 38 mm