With a high-impact, carbide tip and elongated 4-flute design, DEWALT HIGH IMPACT CARBIDE SDS Plus Masonry Drill Bits deliver extreme durability and fast drilling. An open-head design enables quick material removal while working.Features Up to 2X life vs. Bosch: DEWALT elite series 3/16 x 8 SDS plus drill bit dw5504 vs. Bosch hcfc2012 drilling c35/45 concrete. Anchor wear mark indicator: for accurate diameter of holes when using the bit to install anchors. Located on the carbide tip of the bit. Once the wear mark is no longer visible it is time to change the bit for proper anchor installation. No break guarantee: if your drill bits fails for any reason while the anchor wear mark is still visible on the product head, DEWALT will replace it free of charge. Longer life vs. Previous DEWALT 4 cutter design in c35 concrete with select sizes: proprietary circulating cutting carbide design, offers more carbide surface area than previous 4 cutter design. Prop 65NoIncludes1X DEWALT 3/4" X 8" X 10" Rock Carbide 4 Cutter SDS+ Hammer Bit Bit Diameter: 0.75 in Length: 13.25 in Flute Length: 8 in Shank Type: SDS-Plus Material: Carbide, Rock Carbide Number of Cutters: 4 Weight: 0.572 lbs Product Type: Masonry Drill Bit Bit Type: Percussion Country of Origin: Germany