These drill bits are specifically engineered to enhance cutting power and debris removal, ideal for drilling through harder rock types like sandstone and limestone. Their triangular shape concentrates the cutting force, effectively penetrating tough layers.
[pdf] On September 13, New Concept Mining (NCM), a division of Swedish company Epiroc, opened its Hydraulic Rock Drill (HRD) production facility in Aeroton, Johannesburg. NCM is a ground support solutions supplier based in South Africa.
[pdf] This paper examines the new water-hydraulic (hydropowered) drill rigs that have been developed and proven in the last decade primarily in tabular, shallow-dipping, narrow-reef hard-rock South African mines.
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