The saw blade is a consumable material, and it needs to be replaced when it is dull. If you continue to use it, you will find that the cutting track will become skewed, and there will be scorch marks on the cutting surface. Finally, the saw blade will even be broken.

Please select a suitable saw blade according to the actual cutting needs.
Please choose a thinner saw blade for cutting curve, and a wider saw blade for cutting straight line. 

There are many types of saw blades, and it is impossible to list them all. If you are not sure which saw blade you should use, please inform us your model, the material you want to cut, the height of the wood, the profile or the cutting curve, so we could recommend a suitable saw blade specification for you.