4-1/2" Indestructible Disc for Grinder,composite multi-functional cutting sheet, ceramic tile, rock slab, marble, color steel tile, iron sheet, metal angle grinder, brazing, dry slicing. Powerful cutting, durable and wear-resistant, multi-functional cutting discs. Using high-quality raw materials, zigzag tooth design, sharper cutting and longer service life.The 1.2mm ultra-thin matrix, ultra-thin and high-hardness substrate design greatly increases the efficiency during cutting. Angle Grinder Cutting Disc in hand, get twice the result with half the effort.