Following are examples of three metamorphic rocks and a list of their uses. Marble is a metamorphic rock that is used to make floor tiles, counter tops and it is carved into statues and was used extensively in the building of the Roman Colosseum and other historic buildings. Slate is another metamâ¦.
A hex key, Allen key or Allen wrench is a tool of hexagonal cross-section used to drive bolts and screws that have a hexagonal socket in the head (internal-wrenching hexagon drive).
Shortcut Keys. Shortcut keys (sometimes erroneously referred to as accelerator keys or hot keys) are keys or key combinations that users can press for quick access to actions. Shortcut keys differ from access keys. Access keys are assigned to every control so that the user can use the keyboard to move through the UI quickly.