Drillers in this unit group operate mobile drilling machines to bore blast holes in open-pit mines and quarries and to bore holes for blasting and for building foundations at construction sites. Blasters in this unit group fill blast holes with explosives and detonate explosives to dislodge coal, ore and rock or to demolish structures.

Example titles: blaster – construction, blaster – surface mining, driller, construction foundation drill operator, open-pit blaster, open-pit driller, rotary drilling machine operator