Profile: Malcolm Drilling Company, Inc. is a specialty foundation contractor. Our list of core services include drilled shafts, micropiles, auger cast piles, excavation support systems, cutoff & secant pile walls, slope stabilization, jet grouting, deep soil mixing, underpinning, dewatering, and Omega displacement piles. We have a wide selection of drilling equipments including top drive rigs, conventional drill rigs, pile setting & soil mix rigs, cranes, augercast pile rigs, soil cutter rigs, oscillators/rotators, tieback rigs and Omega displacement pile rigs. The Leffer 3.0 M rotator is a boring machine capable of drilling a 3.0 m hole over 200 ft in depth providing casing to the bottom of the bore hole. This fully cased method causes less overbreak and creates a cleaner pile. The machine has over 5 million ft-lbs of torque and 1 million lbs extraction force. By using reduction inserts, the diameter can be reduced to 2.8 m or 2.5 m.