Belgian1979vette
Well-known member
OK, I need to tap some NPT treads. I would like to know if I would have to use a reamer first or can I just tap the drilled hole straight with the tap. If so what reamer would be a good one (size, angle etc).
Also, any good, reliable and not to expensive suppliers in the US. For these taps they charge me an arm and a leg here.
Also, any good, reliable and not to expensive suppliers in the US. For these taps they charge me an arm and a leg here.