There are many factors that go into achieving a smooth cut with a saw blade. The type of saw, the quality of the blade, the speed at which you're cutting, and even the type of material you're cutting all play a role.
In general, however, there are a few blades that tend to produce smoother cuts than others. For example, carbide-tipped blades are known for their ability to stay sharp longer and resist wear better than other types of blades. This means they can maintain a consistent cutting edge over extended use, resulting in cleaner cuts.
Another option is a diamond-coated blade. Diamond is one of the hardest materials on earth, so it's no surprise that these blades can stand up to some pretty tough Cutting challenges. They're also great for making extremely fine cuts without sacrificing too much speed or precision.
Finally, consider using an abrasive blade if you need to make very precise cuts or achieve an ultra-smooth finish. Abrasive blades work by grinding away at the material rather than slicing through it like traditional saw blades. This makes them ideal for delicate jobs where even the slightest imperfection could ruin your project.