The fitting I chose is rated for 6000psi @ 70°F, or 100psi @ 250-400°F. Nosedrive temps from the WCBF crew (thanks to the Bullet) peaked at 160°F after each run on a 100°+ day. So a 200° rating would be safe (considering your fitting or valve, if you choose to do this, would be somewhat in the moving airstream).
Centerpunch your start hole:
Drill a pilot hole:
Notice how it will overlap the ridge? And pick up the 'low spot'?
Drill with a letter "R" drill:
I missed by a tidbit, but it'll all work out in a minute or two:
Tap with a 1/8-27 (NPT) tap:
These 3 pics show how I shaped a 'cup' or 'pickup channel' to make sure it fully drains:
The angle you want for an M62 to be able to gain easy access. Roughly 'aimed' at the end of the ND shaft:
Seal appropriately. I'm using the red goop. We're all familiar with that stuff.