Introducing the 4-1/2 in. Diamond Blade for Cutting Tile by POWERTEC. This porcelain tile cutting blade possesses a continuous rim for fast, smooth cutting. It's universal design is ideal for tile installers and DIY enthusiasts, and suitable for most tile saws and hand-held angle grinders. It has a 7/8 in. arbor hole(with 20mm - 5/8 in. adapter rings) and has a bonded diamond edge designed for speeds up to 13000 RPM. For use with your tile saw, the blades feature X-teeth for smooth, rapid and consistent cutting action. Premium Features: This diamond saw blade cutting tool is designed with a wobble-free thick center to avoid vibration, allowing you to cut in straight lines, and it's made to withstand extreme high temperatures. The blade possesses a heavy duty steel construction for minimal chipping and long-term durability. Plus, the super thin blade will slice your work piece like butter, leaving you with high precision cuts.Versatile: Perfect for dry or wet cutting, this multi tool diamond blade can be used for cutting tile, thin masonry and various materials, including:(Suggested thickness is less than 1/2 in.), Porcelain, Ceramic, Granite, Marble, Brick, Slate, Cement Backer Board & more.