What are they?
Can anyone identify these tools? They were made by Stanley. Model number was 04118. I couldn't find a hit to that number, even on Stanley's website. Nor did I find a hit to the patent number #3,656.521 The only idea I can come up with is for removing broken screws and the owner says that the cutting edges appear to be for counter clockwise cutting. I'm hoping someone has actually used them before or seen them used. I suspect that they may be a few decades old.
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.