Design for removing adhesives, thin mil coatings and leveling uneven spots or joints. The Bar Designed Diamond Segment is a aggressive segment that is often used when round style diamonds can't cut it. Prepping for Coatings :Easy to deal with various rough surface. Smooth and unbroken edges, low grinding resistance, high efficiency grinding. Used on concrete/cement/painted floors. grinding tools desgined for Soft Concrete, Soft Bond Metal Bond Trap Back Concrete Diamond Tool Disk for Concrete Floor Grinding - 2 Bar Segments for Soft Concrete, softly bonded.