Scientists now know how to drill deep enough to tap into an energy supply that would power the world for more than 20 million ...

This Russian project near the Norwegian border struck out in 1970, aiming to puncture the crust right down to the mantle, and one of its bore holes reached a vertical depth of 12,289 m (40,318 ft ...

Cordless drills are popular selections as must-have tools, as they are powerful, lightweight, and give you the ability to perform a few different jobs, from drilling holes to driving screws.