Longer answer: The Center Rock drill, heretofore not featured on websites like Engadget or Gizmodo, is in fact a piece of tough technology developed by a small company in it for the money, for profit. That's why they innovated down-the-hole hammer drilling. If they make money, they can do more innovation.
This profit = innovation dynamic was everywhere at that Chilean mine. The high-strength cable winding around the big wheel atop that simple rig is from Germany. Japan supplied the super-flexible, fiber-optic communications cable that linked the miners to the world above.”