Tried a search, but no joy.
Anybody know the taper angle of 1/8" NPT ?
Trying to make my own weld bung from a piece of 303 stainless. Tap says "Drill 21/64" on it but that's no easy deal, screwing that tap into a hole that size to any depth. Got it down to where a fitting screws in about 4 threads and "I think I better stop before I break something". I want my fitting to screw in deeper, I'm thinking I should bore a tapered hole, but don't know the angle.