How do I make four circular holes, all the same size, in the square face of a cube? The only way I can see to make holes in it is to duplicate the face of the cube, and use it to make the holes. Obviously, the hole made will be square, not round. It would be difficult to position the hole correctly, also, which I do not like.

I figured I could make a seperate circular face in advance, position it where I wanted it to be, then proceed with the process, but the second face has to be a duplicate of the original object appearantly.

What on earth can I do?