Adzes have a carved wooden handle lashed to a metal blade. Before the arrival of Europeans the blades of adzes were made of stone. Why do you think people would adopt this new style of adze blades?

Adze: A cutting tool, similar to an axe, where a bevelled stone blade is attached at a right angle to the (typically wooden/bone) handle, usually used to work or plane wood. Axe: A chopping or cutting ...

The archipelago scattered beneath the Florida peninsula like a broken string of bushy green emeralds across a wet, blue floor ...

(ref) The researchers believe the notch was deliberately made by scraping and adzing (the process of shaping wood with an adze, a tool similar to an axe but with a blade that cuts perpendicular to ...