Now we have to drill some holes.
The output jack (of course some people call it the input jack) is a 7/8" hole centered on the flat spot.
Slow and steady...
I have discovered that if the bit is taking off equal sized chips all around the hole, it is going in straight.
this is what we are looking for...
the pilot is just starting to peak into the control cavity. Have to be careful now. We don't want to blow out the hole where it goes into the cavity.
It is straight, not chipped, and pretty much centered. A person couldn't really ask for much more.