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 ?
The depth of the milling operation was 1.00 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.
Termed LBT (Live Blade Tools), these are fully functional knives, coded any color than red or blue, with sharp cutting edges and piercing tips.
WORK SHARP TOOL SHARPENER is designed for sharpening a broad array of woodworking and common blade tools including chisels, plane irons, carving tools, putty knives, scrapers and axes.
Such modification is not necessary for resin-hafted knives or picks, although it is apparent that more recent indigenous knappers may create a morphological likeness to some blade tools by more extensive retouching than occurred in the ethnographic past.