Diamond Saw Blade, DEWALT(R) Series, Blade Dia. 4 1/2 in, Arbor Size 7/8 in, Arbor Shape Round, Max. Blade Speed 13,300 RPM, For Use With Saw Type Chop Saws, Cutting Type Wet/Dry, Rim Type Continuous, Max. Cutting Depth 1 3/8 in, Grade Best