<ul></li>Strong core: SDS max bits have tapered core for bit strength and maximum durability, especially when drilling deep holes</li><br /><li>Aggressive material removal: Two stage flute design with variable helix pattern of DEWALT SDS hammer drill bits allows for efficient debris removal</li><br /><li>Clean, round holes: Two sharp cutting edges for true holes</li><br /><li>Wear mark indicator: For accurate diameter of holes</li><br /><li>ROCK CARBIDE tip maximizes carbide surface contact for longer bit life.</li><br /><li>Four flute design cleans debris out for fast, efficient drilling.</li></ul>