Diamond Saw Blade, Blade Dia. 4 1/2 in, Arbor Size 5/8 in, 25/32 in, 7/8 in, Arbor Shape Round, Max. Blade Speed 12,000 RPM, For Use With Saw Type Angle Grinders, Cutting Type Dry, Rim Type Turbo, Max. Cutting Depth 1 1/4 in, Grade Good