The DeWalt DWA4240 Oscillating Diamond Half Moon Grout Removal Blade is built for aggressive material removal when accuracy and control matter most. Its half moon profile supports smooth, consistent grinding across grout lines and flat surfaces, making it well suited for tile repair and remodeling tasks. The diamond grit cutting edge combined with carbide edging offers extended service life in tough materials, while the universal open-back fit allows fast attachment to most oscillating tools without adapters.