Power Tools

Powerful automated stone-cutting devices, incredible power drills capable of cutting through even the hardest granite, fire engines that can respond to and extinguish a fire anywhere in a city; even precise surgery tools so fine they are used on the human eye. These tools are not from the modern world, but are in fact thousands of years old. Most would be lost to time and not again for centuries. How was the ancient world able to create such incredible power tools? Why were they lost, and could there be even more advanced ancient power tools waiting to be discovered?