The bone tools, which all appear to have been systematically produced in the same style as one another, were found in Tanzania’s Olduvai Gorge. The site is also where archaeologists have previously unearthed artifacts related to some of the first stone tools crafted by early hominins, or human ancestors who walked upright.
Previous discoveries of bone tools have occurred in isolated instances across Europe and Asia, but the 27 bones found at Olduvai Gorge seem to imply mass production, the study authors said. While the bone tool kits found later in Europe, dated to 400,000 years ago, are much more refined, the Olduvai Gorge tools were more effective for heavy-duty tasks, Njau said.
I wonder what they called their hand-chiselly tool.