Question: what enchantments can you put on an axe?
Answer: 1 Efficiency. Without a doubt the best enchantment to have on an axe, or on any tool for that matter, is Efficiency.
2 Mending. ... 
3 Unbreaking. ... 
4 Chopping. ... 
5 Silk Touch. ... 
6 Sharpness. ... 
7 Smite. ... 
8 Bane Of Arthropods. ...