RIDGID Turbo Diamond Blades are manufactured with the contractor in mind. These blades are engineered for maximum cutting performance and 3x longer life than standard abrasive blades. The Turbo rim design provides fast, clean, and accurate 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 in. angle grinders wtih 7/8 in. arbor, 5/8 in. and 20mm adapters included. Professional-grade quality Engineered for fast cutting of concrete, brick, block, pavers, and roof tile Turbo style rim is formulated with high-grade diamond and a unique bond matrix for fast clean cuts For use on 4.5 in. angle grinders 7/8 in. arbor, also comes with 5/8 in. and 20 mm adapters MAX RPM 13,300 Faster cutting and 3x longer life than standard abrasive blades California residents See Prop 65 Warnings Dimensions Blade Diameter 4-1/2 Diameter (in.) 4.5 in Details Blade Diameter (in.) 4-1/2 Blade Type Diamond Color Family Black Ideally Used With Angle Grinders Material Cut Multi-Purpose Number in Package 1 Power Tool Accessory Type Circular Saw Blade Rim Type Turbo Saw Blade Material Diamond Teeth Per Inch 0 Tool Type Saw Blade Tools Product Type Power Tool