Dewalt DW5410 Features: • ROCK CARBIDE tip maximizes carbide surface contact for longer bit life • Innovative tip that reduces walking and increases accuracy • Four Flute cleans debris out for fast, efficient drilling • Guaranteed to set up to 25-percent more anchors than other standard masonry bits • Designed with three flats on the shank that prevent it from slipping back into the chuck, ensuring user safety • Hammers through the hardest aggregate with minimal wear or breakage