The Concrete Turbo Drill Bit is made with fine grade high durable carbide for an extra-long life and best wear resistance The activeteq centering tip offers active cutting in concrete Featuring the new Power Grip System that enables 100% of the machine’s power to be transferred to the drill bit, this 2-cutter bit has diamond-ground cutting edges that pulverize the concrete faster This hammer-resistant heavy duty drill bit is ideal for all impact drills and is built with a 2-flute various design that offers less friction and good dust removal for faster drilling The concrete turbo drill bits are suitable for drilling holes in granite, concrete, masonry, limestone, natural and artificial stone