The WorkPro 4.5" Masonry Cutting Wheel can cut a wide range of masonry materials including stone, slate, cement board, bricks, concrete, cement backer board and more. Enjoy a long life and high-quality output with WorkPro 4.5" Masonry Cutting Wheel - 3 Piece on your die grinder. Thinner design minimizes the surface area contact between the material and the cut-off wheels for faster and cleaner cuts. The premium tough aluminum oxide abrasive continuously exposed during use to maintain an aggressive cutting edge and helps getting longer useful life than standard wheels. These universal cutting wheels can be used on most brands of power tools. While cutting masonry materials such as concrete, brick and block feel confident you have the tools at hand to do the job with the WorkPro 3-Piece Masonry Cutting Wheels.