Enlarging holes in frame

[RocketScott]

That one's not long enough to go all the way though the frame and get the nut on

The closest thing I've found is a Tramec Sloan 55661



The only issue I see with that is the internal threads are 1/4". All the other fittings and hoses going to the front chambers are 3/8". I don't know if adding that choke point would make that much of a different or not