Specialty Diamond’s Segmented Diamond Blades are engineered for maximum cutting performance and 3x longer life than standard abrasive blades. The Segmented rim design provides fast, aggressive cuts on stone, brick, block, and concrete. It’s also an excellent choice for roof tile and other masonry products. Use this blade on 4.5 in. angle grinder’s with 7/8 in. arbor, 5/8 in.Dry cutting general purpose blade with 0.070″ segment thickness & 0.6″ segment depth for use with portable tools, circular saws. Designed for fast rough cutting in concrete, stone and block.