When you helicoil a hole you are actually oversizing the hole then tapping it for the actual insert which will be the size you started when you are done. Any of this make sense?
no, it isnt that i dont know how to use helicoils, i am not using helicoils.
ok here is what i am going to do. im going to start tapping it, if i notice it doesnt fit and i need to drill it out, i will, if it fits im running it all the way in there