Folks. Bad luck this am. I wanted to change scope and rings on a rifle Using my B-square gun smith screw driver set broke tip of the star head in the Burris z ring scope base bolt while loosing it up. Been on gun a while. My fault I don’t think I got it seated in deep enough when I tried to remove it or just got to aggressive with it. So I am here talking with the experts again on a Sunday morning when I should be shooting. Ha ha ha. How do you guys think I should proceed in getting this tip of the star driver head I broke out of the bolt head in Burris z ring scope base screw ? I am sure this star tip is made of hard steel not sure what to use to drill it out with ? Not sure what I could use to put on the out side of the screw ? It apears the out side is round. Looking for a ideas this am. Thanks. Marty