The Spyder Diamond Bite 4-1/2-in Continuous Rim Diamond Blade is ideal for clean cutting applications including tile and masonry materials. A high concentration of premium industrial diamonds bonded in a complex diamond matrix yields a blade that cuts cooler -- quicker, cleaner and longer than standard diamond blades. Cut wet or dry for increased versatility using an angle grinder. Ideal for porcelain tile, ceramic tile, masonry, block and brick. Premium-quality industrial diamonds provide quick and clean cuts. Complex diamond matrix bond retains diamond abrasive for extended cutting life. Use wet or dry for increased versatility. Balanced blade provides vibration-free cuts for optimum cut cleanliness. For use on angle grinders with a maximum RPM of 13,300.Blade has a 7/8-in arbor; a 5/8-in bushing is included.