The trapezoid is a very aggressive segment that easily attaches to the segment plate. Smooth and unbroken edges, low grinding resistance, high efficiency.​ Effective concrete/cement/paint floor grinding tools, fast and fluent grinding. Design for removing adhesives, thin coatings and leveling uneven spots or joints. It's good to coarse grinding concrete quickly, remove bump, make the leveling., Weight: 0.45856150496 pounds, Manufacturer: Ehwisbe