The grooves could have served some functional purpose as a tool. Could it have been attached to a cord and used as a sling? Some tools are used to create other

The grooves could have served some functional purpose as a tool. Could it have been attached to a cord and used as a sling? Some tools are used to create other tools, so it could be additionally difficult to speculate as to its purpose. Maybe the research has some reasoning why they don't think this was the case.