Are self-drilling and self-tapping screws the same thing?

I learned the difference between self-drilling and self-tapping screws while working with EJOT Octaqon products. They might look similar, but they’re not the same. Self-tapping screws cut threads into a pre-drilled hole, while self-drilling screws have a drill bit tip and can go straight into the material without pre-drilling. Using the right one really made installation smoother.