Euphanism: literally, a sky crane is a guestural term indicating an extremely large piece of machinery or tooling (as in: big enough to move the sky). Logic dictates that any such machine or tool is also the largest on the planet. Therein, the biggest
tool on earth.
Not to be confused with
death star, which would be the largest
tool in the galaxy...
That's no small moon; that's Dan Quayle.