DeWALT DW5470 - Rock Carbide 5 Piece

Strong core: SDS max bits have tapered core for bit strength and maximum durability, especially when drilling deep holes Aggressive material removal: Two stage flute design with variable helix pattern of DEWALT SDS hammer drill bits allows for efficient debris removal Clean, round holes: Two sharp cutting edges for true holes Wear mark indicator: For accurate diameter of holes NO BREAK GUARANTEE: If your bit fails for any reason while the wear mark is still visible, we'll replace it (excludes: DW5400, DW5401, DW5401B25)