I know this is a common practice but I never use this software. this is for a product that I make and sell a few each year and had someone years ago that wrote the program, I had a computer crash and lost the program for this size so I'm trying to write this program. the person that i used to write the program checked out of the hotel so I can't ask him. I've looked at the program for the other size and it does not give a name to that process it just shows 2 grooves with the separation so the part doesn't fly off and destroy itself and the part. If i could get the name of that process i would probably find it somewhere in the software, but I don't seem to find it in the manual or in the geometry of the software. So the million dollar question is what is this process called?