Tools

The great compass, set-square, and level are features on portrait busts and tomb slabs of master masons, as well as in painted illuminations of the medieval building site. Large compasses could be used to draw details at full scale directly onto the ground or a tracing floor, where the component stones could then be assembled. Such tools retained their medieval forms for many centuries. This 19th-century level is part of the same extended medieval tradition of manufacture and use.

This is a stone masons saw. The only difference between a normal one and this is that this cuts through stone.

This is a mallet. You hammer the mallet into the chisel.

This is a chisel. Chisels were used for  making designs or shaping the stone.