Diamond Blade Blade Dia 4 1/2 in Arbor Size 7/8 in Arbor Shape Round Max Blade Speed 13 800 RPM For Use With Saw Type Angle Grinder Cut-off Saw Cutting Type Wet/Dry Rim Type Segmented Primary Material Application General Purpose Materials Cut Block Brick Concrete Pavers For Use On Concrete Type Block Brick Concrete Pavers Grade Good Blade Material Diamond