A giant boring machine has broken through to complete excavation work to all of the tunnels along the 140 mile route of the HS2 railway. The enormous 125m (410ft) long machine emerged today (Mon) ...

The two massive tunnel boring machines that will do the first drilling for the Gateway Rail Tunnel between New York and New Jersey are now in North Bergen, laid out in components across a construction ...

Boring, also called internal turning, is used to increase the inside diameter of a hole. The original hole is made with a drill, or it may be a cored hole in a casting. Boring achieves three things: ...

The McL 24C auger boring machine delivers 98,000 pounds of forward thrust and an auger torque of 6,339 lb.-ft. It can install casings from 4 to 24 inches in diameter. It has a 24.6-horsepower ...