The MT840 Marshalltown 6" x 3" x 1" 20-grit rub brick is designed for durable and effective surface preparation. Its coarse 20-grit texture makes it ideal for smoothing rough concrete, mortar, and masonry surfaces, helping professionals achieve a clean, even finish. Compact yet sturdy, this rub brick offers precise control for detailed work, ensuring superior results in both restoration and new construction projects.
