I've got several for the larger primer hole but they don't work on the smaller hole in the BR cases I bought. I was just wondering what's out there that I can use on the small primer flash holes. Thanks.
I've also found that my DeWalt 1/16th bit fits nicely, too. It cleans up the hole without enlarging it. I use my fingers for that and twist it once or twice, then debur the flash hole with my LR deburring tool.