Diameter: 7/8"Overall Length: 12"Shank: SDS-PLUSHigh Quality Carbide For Long Drilling LifeDesigned For Fast, Efficient Drilling Through Rebar Reinforced ConcreteNo Need To Change Bits, Same Bit Cuts Through Concrete And RebarUse In Rotary Mode Only, Do Not HammerUnique Flute Geometry With Steep Spiral Removes Debris FastTapered Body Design Provides Less Weight For Smoother DrillingRelief Hole Dissipates Heat And Allows For Slug Removal