The QEP 6-4003CR 4 in. Continuous Rim Diamond Blade provides accurate cutting with minimal chipping. This premium quality blade is specifically engineered for cutting ceramic tile, marble, and porcelain. Used for wet and dry cutting, the blade is designed for a long lasting performance. High quality and exact specifications assures the user a wobble-free blade that produces smooth and precisecuts. Blade specifications: 7 mm Rim Height; 7/8-20mm-5/8 Arbor Size; 15000 Maximum RPM.