The first four tunnel boring machines are coming to New Jersey to build the Gateway rail tunnel. Here's what they do and why ...

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: ...

Workers on the mammoth Gateway tunnel project are getting ready to start drilling through the Palisades in the new year. The Gateway Development Commission — the public authority behind the ...