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: ...

Seven months after beginning its journey, Elaine the tunnel boring machine has completed its subterranean mission drilling out the Northside Interceptor Tunnel (NSIT). The 16.5-foot diameter, ...

Kapp Niles has developing and building gear-cutting and -finishing machines for more than 120 years, with a portfolio that also includes grinding tools and, since 2017, measuring machines. The company ...

SEATTLE — MudHoney, a tunnel boring machine named for a Seattle grunge legend, has finished its journey from Ballard to Wallingford as part of the Ship Canal Water Quality Project, a partnership ...

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