/diy/ - Do It Yourself

It was so you could pry with the claw with the handle at different angles. It disappeared as an idea because it was a fairly unnecessary feature that added a pretty big drawback of making the connection between the head and handle loose and weak compared to a normal hammer.

I've seen a recent re-imagining of this idea with hammers that have adjustable claws, but it still feels like a pretty worthless feature that introduces unnecessary weak points to the tool.