4-1/2″ Green Wave Core wet/dry Blade Very fast cutting blade. 5/16” rim blade for durability. Built for speed of cut. May be used wet or dry. Mesh blades are designed to contact the material better than segmented blades. Mesh blades also last longer and cut faster than continuous rim blades. Ideal for placing on a grinder and cutting into tile, porcelain, natural stones such as granite, marble, and other materials. Diameter is 4-1/2″x.1″x7/8″-5/8″ DTA has been serving the tile and flooring contractors for over 40 years.