They look as though they fit ...
... but they don't.
Now shall I use DK and a 4.5mm hook instead of Chunky and a 5mm hook?
Or shall I use DK and a 5mm hook?
Or shall I use Chunky and a 4.5mm hook?
Hmm! Also one looks bigger than the other. Ah well - can't win them all. Nil desperandum.
The pattern was found here.