Diablo 5 8" x 8" x 13" Rebar Demon SDS Max 4 Cutter Carbide Head Hammer Drill Bit Deck Drive DCU COMPOSITE Screw (Collated) so every element works together so every element works together by design rather than by chance Fastener Quantity: 30 screws included Precision anchor setting in structural concrete demands consistent hole depth and diameter the Precision Tip and wear mark indicator provide the accuracy and control needed to meet anchor installation requirements in critical concrete and masonry structures Up to 7X longer life versus standard 2 cutter hammer drill bits fewer bit changes on the job means less downtime and lower cost per hole over the life of the tool