In the dev.plans, and Sami’s comments, we’ll get axe haft repair sooner or later.
I suggest to piggyback on that and alternate haft lengths, within reason. Short, medium and long hafts
Handaxe head with medium haft: handaxe, with short haft: hatchet, with long haft, hunter’s axe.
Woods man’s axe renamed to Felling axe. Felling axe head with long haft: Felling axe, medium haft: forest axe, short haft assembly attempt to suggest awkward setup, allow it and result in awkward axe*
Carving axe with medium haft: carving axe, with short haft: carving (or craft) hatchet. Long haft: awkward axe*
Broad axe with medium haft: broad axe. Short haft: hewing hatchet. Long haft: hewing axe.
Splitting axe with long haft: splitting axe. Short and medium haft: awkward axe*
Battle axe with long haft: battle axe, medium haft: war axe, short haft: awkward axe*
In general;
Long haft requires 2 handed grip or carry penalty, works faster, but lower quality output on tasks.
Medium haft works well one handed, can be used 2-handed. Average speed, average quality output on tasks.
Short handle works great one handed, doesn’t utilize free 2nd hand. Slow speed, high quality output on tasks.
*Awkward axe works slow and produces low quality output on tasks. Similar to stone axe, possibly faster, but not necessarily better.
If the throwing axe is still in-game (haven’t seen one in multiple plays), anything but given, presumably, short haft, gives awkward axe as result.
Please add/correct variations I might’ve overlooked.
E.g. making logs would benefit of using hewing axe, but remaking roundshield would benefit of using hewing hatchet.
Building shelter would be fastest with handaxe still, but using hunter’s axe or forest axe would be very close.
Edit: forgot about the spears: standard for all metal pointed spears would be long shaft. Alternatively could use short shaft with reduction in reach, possibly damage; but work well with one handed/with shield.