Okay kiddo, have you ever used a saw before? It's a tool used for cutting wood or other materials. When you use a saw, the sharp teeth of the saw blade bite into the wood and make a cut.
But did you know that sometimes the teeth of the saw blade can get a bit squished or bent when you use it a lot? That's not good because it can make the saw harder to use and it won't make clean cuts anymore.
That's where a saw set comes in! A saw set is a special tool that helps you fix the teeth on a saw blade so they're all lined up properly and sharp again.
The saw set kinda looks like a small pliers with a little hammer on one end. You use it to carefully bend each tooth of the saw blade back into place so they're all at the same angle. This helps the saw work better and make smoother cuts.
So, whenever you have a saw that's not cutting as well as it used to, you can use a saw set to fix it up and make it good as new!