The Robbins H-100 was a high-production blast-hole drill employed by a number of surface-coal-mining companies in the Illinois Basin during the 1960s and 1970s. Starting with development work in 1960 ...

Suppose you need to modify an enclosure by drilling a hole in it to install a drain (or for some other purpose). How can you do this in a way that leaves a perfect hole with a minimum of work? First, ...

The residential construction near Washington, D.C., is booming with new developments. Country fields lined with streets of million-dollar homes are surrounded by pastures spotted with black angus cows ...

Choosing the right size horizontal directional drill (HDD) for utility work can be a real challenge. Trying to manage multiple customers in multiple locations and varying ground conditions can ...

I need to drill a 2” hole 4-6” deep into tops of vertical 6x6 deck posts. ( I’m installing steel top rail) Holes will hold 1-1/2” square vertical tubes. Horizontal 1-1/2” tubing will then be welded on ...

A new record for horizontal drilling technology under complex geological conditions was set by a Chinese hydropower company on Wednesday, with the termination depth reaching as deep as 775.6 meters ...