I'm working on a serie of chanters since (more than) one year, and I make a few more in addition of the current orders.
There's:
-1 D concert-p in boxwood
-1 in blackwood
-1 blackwood C
-1blackwood B
They are all full keyed (plus stop-key), nickel platted.
They'll be availlable from next month (blackwood D chanter first).

I'm always a little concerned when someone says "full keyed", without explicitly listing the keys. My B chanter has 7 keys plus the stop-key, and I think of anything less as not fully keyed. Some makers do 5 keys as standard (Fnat, G#, Bb, Cnat, and 3rd octave D) some only four (the first four previously listed). It's probably best to be explicit with which keys are actually included.

IMO. fully keyed would mean the keys needed to play all the semitones of the first two octaves - that would be Fnat, G#,Bb and Cnat.
Any other key, like a Fnat ring key, 3rd octave D, 3rd octave E, little finger operated G#, low C# below bottom D and whatever else I would consider as extra.
@Nico: which keys have you got on your chanter, just out of interest?

That's somehow what Mick said: Fnat, G#, Bb, Cnat and C#-D3 keys...

Well, I don't think it's universally agreed or understood that four keys = fully keyed. I do agree that having more isn't strictly necessary... but then again neither is having the ones listed. After all, you don't need the Bb key (you can often half-hole and/or cross finger) or Fnat (same), or Cnat (only useful for a few tunes) to be "chromatic" (although it's not real chromaticity anyway). And it's not like the pinky-finger Fnat is standard, so there's confusion there already if you don't specify. In addition, I think most flat chanters (at least true narrow-bore ones) do not play an Eb with only pinky up, so an Eb key is actually necessary to make them chromatic.

Anyway, I just think instead of saying "fully keyed", it's better to be explicit and list the keys included.

Regarding my B chanter, I have Cnat, Bb, G#, long Fnat (pinky operated), an Eb (or E correction) key, a 3rd octave D (or possibly C# correction) key, and a 3rd octave E key. The only one I don't use is the last one. If I had to do it again, I'd probably leave that one off, but keep the rest.

I don't think I've heard a time that goes to a 3rd octave e. The only tune I know that goes to high d is the queen of the fairies. Although I've heard paddy Keenan go to high d in the course of variations that aren't strictly integral to the tune. Who's been playing these high e's?

That's why I wouldn't get it a second time

There are quite a few tunes with a 3rd octave D, although many chanters don't need the key. On this album both the Waterford waltz and the Drought slip jig go up there:
https://nicolasbrown.bandcamp.com/releases