'Tool' in the Bible

{For example}, when somebody goes with his neighbor into the forest to cut wood, and the iron [head] slips from the handle [of the tool] and strikes his neighbor and he dies, [then] he may flee to one of these cities, and [so] he may live.

and a digging tool shall [be included] in addition to your [other] utensils for yourself; {and then} {when you relieve yourself} outside [the camp] you shall dig with it, and [then] you shall turn, and you shall cover your excrement.

And you shall build an altar there for Yahweh your God, an altar of stone, but {you shall not use an iron tool to shape the stones}.