What were the most ancient tools of labor?

One of the most primitive tools of labor of ancient people was every possible combination of stone and wood objects, such as a digging stick, a spear with a stone tip, stone axes, and so on.
Most of the stones, which served as sharp and sharpened objects for further adaptation to wood, were first manually sharpened and shaped to the required shape.
Then a handle for weapons and devices was made of wood, to which the prepared stones were attached with the help of a primitive rope.