How to remove floor paint. How to remove epoxy.
Sometimes a two step process is faster than a one step process. The idea is that the carbide blades will push the loose material from the surface and the diamond segments will grind the residual.
Diamond segments will tend to scratch from the top (as designed to do) but do little to scrape the bulk that is loosely bonded.
The list of tools that are needed for the toolbox sometimes seems excessive, but trying to do a job with a slower tool will only end up costing more due to extra labor.