Dewalt DW47434 Xp4 Reinforced Concrete Segmented Diamond BladeDewalt DW47434 Engineered for longer life**, XP4 Segmented Diamond Blades cut through hard materials with precision and ease. Laser welded segments packed with 20% more diamonds* stand up to the demands of cutting through reinforced concrete and hard brick. Make quick, deep, and accurate cuts with the patented arrow blade design while aerodynamic vents keep the high alloy steel core cool. Features ENGINEERED FOR LONGER LIFE**: Laser welded segments