I used the command to print the unlocalized name of all the axes from Thermal Foundation, inserted them and what I deemed possible variations, to no avail. They only break one block at a time. All the axes I added from other installed mods work perfectly.

I'm using tree chopper v1.2.4 for 1.12.2 on forge 1.12.2 -14.23.2.2640

Any help would be much appreciated.

Should probably either code your mod to recognize the most popular modded axes or create a config file section so people can add them to be recognized on their own.

Any closer to some help? A proper configuration format example would be splendid! Just tell me how it pulls the name and I'll be good.

I'm getting the same issue with thermal foundation axes:

  item.thermalfoundation:tool.axe_copper
  item.thermalfoundation:tool.axe_tin
  item.thermalfoundation:tool.axe_silver
  item.thermalfoundation:tool.axe_lead
  item.thermalfoundation:tool.axe_aluminum
  item.thermalfoundation:tool.axe_nickel
  item.thermalfoundation:tool.axe_platinum
  item.thermalfoundation:tool.axe_steel
  item.thermalfoundation:tool.axe_electrum
  item.thermalfoundation:tool.axe_invar
  item.thermalfoundation:tool.axe_bronze
  item.thermalfoundation:tool.axe_constantan

I've also tried with & without "item.etc...." in front. Only breaks one block at a time.
1.12.2 Forge 2732
Treechoppermod 1.2.4
ThermalFoundation 2.5.0.19