Forgive me Gentlemen, I used the search feature and google Fu to no avail. I need to know what size drill bit to use with the .300 reamer to press in the AK74 barrel pin? Pin size .302. The barrel is a new arsenal bulgy barrel with un-issued bulgy kit I know to used a screw machine drill bit. I looked at some charts, but I don't want to guess at this. Too important to mess this up Any Help? Please!