"Paleo Indians preferred fine-grain, silica-rich
rocks called chert or flint.
By striking the edge of a large flint core,
they produced flakes large enough to use
as they were or modified into another tool,
such as a spear point, scraper, graver, or perforator.
The fluted point is the hallmark of
the early Paleoindian period.
The flute is a flake detached from the tool’s base.
The scar from detaching the flute allows the point to fit snugly inside a handle or a spear shaft." Another stone tool is a blade. Blades are disconnected from prepared cores. "They could be used as they were but often were modified into end scrapers or other tools." Compared to stone tools of later cultures, Paleoindian stone tools are larger, more versatile, and highly portable but have shorter periods of use.