Blue68f100
Member
This tool does the hole and removes the burr, like in the above photo. .View attachment 788627
Note that there are 3 or 4 different hole diameters. Buy the correct tool.
There needs to be away to limit how much you remove. I know the Redding has a stop collar that prevents you from removing too much material.
I've run into some flashing (raised very high) that was so bad the tool could not find the flash hole. I ended up running a screwdriver down the case to knock it down so I could get the tool to work. For brass like these you could probably see a difference on paper.