The TD75 is a very TEI TD75 Micropile Drill popular foundation drill from TEI Rock Drills. The TD75 is designed to install micropiles inside of existing buildings for foundation repair. The 75-horsepower electric motor supplies the power to install up to 10-inch micropiles. There is 10,000 foot-pounds of torque and 12,000 pounds of pullback for the toughest jobs. The TD75 is an ideal machine for the foundation repair industry. For more information, visit