Blade Tool

A relatively sophisticated tool meticulously carved from fine grained rock, which is thought by anthropologists to have been the first tool produced 80,000–90,000 years ago by Homo sapiens in Africa
References in periodicals archive ?
00 mm, rake angle blade tool was [gamma] = 15[degrees], at 6000[degrees]/min.
The Qesem Cave people hunted cooperatively, then carried the highest quality body parts of their prey to the cave, where they cut the meat with stone blade tools and cooked it with fire.
Here he learns how ancestors of the Eskimo people developed stone-chipped blade tools and skills to survive in the frozen conditions, and how they went east before heading south into America through an ice-free corridor in Canada.