>>225924This is a diagram of a bow drill.
The indentation is supposed to replace the "socket" in this diagram. Which you have on the handle of your knife.
Now think; would you want to have your knife, pressing down firmly on it, in that position? While applying lateral forces?
Probably not. It's not safe in any fucking way.
So if this was a "feature", you'd need to remove the handle first. You go through all that fucking trouble only to have something you could have used a good stone, shell or carved wood piece for. WHY.JPG