LAST EDITED ON Aug-12-15 AT 06:22PM (MST)[p]A drillbit for the flash channel and I use a nipple pick for the flash hole. Don't know what size of drill for for the CVA breechplug.
I bought the #32 drills because of this on the BH 209 website:
For CVA use a #32 drill bit. Numbered drill bits are machinist bits and can be found at various online supply houses like ENCO, or search ?numbered drill bits? for more.