BS 4019-4:1993

• 73.100.30 Equipment for drilling and mine excavation

This part of ISO 3551 establishes the nomenclature and lays down the leading dimensions to ensure interchangeability within the limits of System A of the following equipment:

1. drill rods and couplings;
2. casings, casing couplings, casing bits, casing shoes, drive shoes and casing reaming shells;
3. core barrels, core bits, core lifters and reaming shells.

It specifies the characteristics of a range of equipment for drilling holes having diameters from 1.18 in to 7.88 in and yielding cores having diameters from 0.73 in to 6.5 in.

NOTE The title of this part of ISO 3551 specifies diamond core drilling, but it is also possible to use other cutting materials.