Eh, just about. I'll put a digital vernier to the wire and let you know.
I talked to a carb guy. Jet size goes by the actual numbered drill index size (#60,#70, #75, etc) and those are SMALL and hard to find outside a machine shop supply house. When you solder, clean the hell out of the jet first with a toothbrush and some alcohol. You may even want to give it a carburator cleaner bath. Amonia sometimes cleans brass well too. Make SURE you use a decent electronics grade flux (from Radio-Schmack) and use a soldering pen. Make sure the tip is nice and clean and conical in shape.
Forgive me if you're a confident soldering pro, because I'll explain this for a relative non-soldering person to understand.
1. Place the jet on a flat, heat resistant surface threaded side down, screw slot side up.
2. Apply a small amount of flux to the actual jet orifice area.
3. Clean the iron, dip the end of your sodler wire in some flux and then apply a small amount of solder to the iron tip so a pin-head sized blob of solder hangs from the tip of the iron when you hold it perfectly vertical.
4. Place the tip of the iron in to the orifice and apply a very small amount of pressure and hold it for.... say 10 seconds or so. The flux will smoke off and the sodler will flow in to a nice little dish.
5. Remove the iron and give the jet 30 seconds or so to AIR COOL. The jet is not going to be damaged by the minimal heat of the soldering. There's gonna be flux and other crud that needs to be cleaned away. Toothbrush and solvent to the rescue!
6. If you did it right, there should be a nice smooth little concave dish of solder where the jet used to be, and no leakage to the back side of the jet, where the needle seats. There might be flux though, so...TOOTHBRUSH!
7. Use something sharp like a needle to poke through the solder. Go slow. The solder is softer than the brass, so go slow and you won't damage the jet. You shouldn't need a drill for this. Enlarge to whatever size floats your boat.
8. Trial and error till it runs. Remember, gasoline is flammable, and although I've never seen or heard of it happening, a soldering iron could set it off.
If you screw it up, fear not! solder is very easy to remove. Just heat up the part, then whack it on a hard surface while the solder is liquid. Molten, scorching hot dangerous poisonous heavy metal solder flys everywhere and it's clean. Thats how I do it. The safe way would be to heat it up and put it in a pickle jar, cap it and shake.
Good luck to you.