Removing old coatings: Grinds away thick layers of epoxy, polyurethane, glue, mastics, and paint left behind by previous flooring.
Leveling uneven concrete: Flattens high spots, rain-damaged slabs, or lips at expansion joints to create a perfectly flat subfloor.
Creating a surface profile: Roughens up overly smooth concrete so that new sealers, epoxies, or self-leveling underlayments can bond securely.