pLackmond Diamond Blade, Laser Weld Segmented Turbo, Series STS4, 12 in Blade dia, 18 in, 1 in to 20 mm, WetDry, 10 mm Segment Height, Applicable Materials Concrete, Asphalt, Green Concrete, Overlay, Masonry, Brick, Block and StoneppThe STS4 MultiApplication Blade Combines Quality and Feasibility For an Excellent CostPerformance Value It is Designed With a Castellated Segmented Turbo Rim With Undercut Protection, and is Ideal For Cutting Concrete, Asphalt, Green Concrete, Overlay, Masonry, Brick, Block, Stone and Much More The STS4 is Engineered With an AirCooling Core to Reduce Heat and a High TensionCore For Durabilityp