My appologies, it's not very clear in the manual on closer review. It doesn't specify the size of the punch you should use. I tapped it out with a hex key because I didn't have a punch of that size. Mine was stuck pretty good so hand pressure was not enough. When it was half way out I attached a red zip-tie so it was easier to find once it popped out. Good thing too! It went flying. I wonder why they didn't use something a tad more sophisticated like a torx screw. Maybe vibrations could knock it loose?