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).
The ProxKey III is a proximity card keyfob for access control offering HID proximity technology in a convenient, pocket size device. The proximity card keyfob easily attaches to a key ring, badge clip or lanyard. The ProxKey III is built to withstand harsh operating environments or handling.The ProxKey III is suited for use in access control applications where a Photo ID is not required. Key Features of the ProxKey III: 1  Small enough to fit on a key ring. 2  Universal compatibility with HID proximity card readers.he ProxKey III is suited for use in access control applications where a Photo ID is not required. Key Features of the ProxKey III: 1  Small enough to fit on a key ring.