Master Drilling Group is setting world records at Zondereinde Mine! Master Drilling Group has achieved an exceptional milestone at Northam Platinum's Zondereinde mine in Limpopo, South Africa. Our state-of-the-art RBR 900 drilling machine is currently engaged in the world's longest raise-bore hole project, having reached an impressive depth of 1,550 meters beneath the Earth's surface. Notably, the pilot hole reached a depth of 1,382 meters, surpassing the previous record set at Lonmin's K4 mine