You can absolutely put sharpness on your axe! It's called sharpening, and it's a crucial part of axe maintenance.
You might be thinking of a different kind of "sharpness" - perhaps you are playing a game or watching a video where you can't add sharpness to your axe.
Here are some possibilities:
- You're playing a game with limited customization. Some games restrict what you can do to your weapons.
- You're watching a video where the axe's sharpness is pre-determined. A video game developer may decide that a particular axe has a fixed sharpness level.
If you're looking to sharpen your real-life axe, there are many ways to do it, including using a sharpening stone, a file, or even a grinding wheel.