There is a screw which holds the two legs of the compass together. It does not have any standard symbolic meaning, although since Freemasons are literally free to interpret their symbols whichever way makes most sense to them, someone might find meaning in it.
All it is is a fraternity, to join with your friends in something you can all relate
The purpose of a compass rose is to allow you to align your compass with it on a navigational map, it is very relevant for people trying to navigate ships or other marine vehicles.
to see what way you are going
A compass rose is a map symbol that shows what direction on the map is North, South, East, and West.
What purpose did the ancient compass serve
there are only theories and it evolved, we may never know who founded initially or original purpose
A screw driver is used to screw, screws into wood it is a very useful tool.
A lensatic compass is a compass with a magnifying glass on the sight which makes it easier to view the needle. These types of compasses are frequently used in the military.
The use of screw driver is to pull out and in the screws
yes they r freemasons
The compass is a general symbol of Masonry, and has no specific meaning for every Mason everywhere. A Lodge may have a rough outline of its meaning, or a very thorough description, or nothing at all leaving members free to make their own meaning of it.
to know all the directions