Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I’m looking for ME taps and dies. So far sets that are offered have a lot of what I’ll most likely never use . It looks like 1/4 4 TPI ME is about the size I need. It seems like pretty common on things I’m im interested n, however when it comes to descriptions things get shaken, I’ve already got a pile of taps as dies I’ll probably never use .  I’d Ike to use small gages to keep the clutter down. I thought I could just use /8 npt across the board and drill and tap theses plugs as needed but my machinery manual is out at the shop so I have to ask is it possible to drill and tap 1/8 and 1/4  “ in NPT FOR THE 1/4  x 40 metric or do I need to go with 1/4” Npt .  Can get an 3 and An 4 easily both in braided Teflon or standard race car braided gel line the fuel line will hold up to anticipated steam temps and pressures with out problems plus it’s very flexible so I won’t need big loops of it. I can get a variety of fittings bottoms rainless and aluminum I think the hydraulics shop has SAE brassctonthatveillbwork with either material or size  so what’s the opinion. I’d really like to kee things neat and clean looking . I could do hard lines too but invariably a line gets bent a little then gets a double bend and looks messy
Byron

One more thing I have acsitevthatbhadcaboutvevryboptionicouldcwantbbutvincantvfindvitvevennyhoughbibsavedbit. I’ve looked at Stewart and model steam but I’d like to keep it on one or two suppliers .