You can hand solder .05" pitch.

I usually tack one pad in each corner then melt and jiggle until everything lines up. Finest soldering iron bit, 26swg multicore, wipe the bit regularly so the solder can't build up enough for a blob.

Finer pitches for hand assembly you need a hot air blow gun, not butane powered, and solder paste...

If it's small enough to melt all the pads simultaneously, tin the pads, remove any bridges then apply the component. Surface tension will pull it in to place when everything is molten.

Too big to melt all at once, tack two corners, apply paste and run the hot air gun down the line. If adjacent pins bridge apply excess solder then grab your recoil less solder sucker. You do have a recoil less solder sucker, don't you?

Tin lead solder, ROHS be blowed. It must measure something if it's CNC, measuring instruments are exempt