I am using both AutoCAD MEP 2013 & Inventor Fusion 2013. I also have BobCad v24.

I am trying to create an elongated counterbore that will recess the socket head cap screw but be adjustable. I can insert a standard counterbore in each program, but will only do a standard round counterbore. Could someone help steer me in the correct direction, or proper name for this as all of my searches havent been that great.

Thanks to all in advance.

Have a happy Thanksgiving.