Optimized for cutting through rebar-reinforced concrete at high speeds. Premium steel delivers increased core strength, durability and bit life. Twice the carbide in the tip compared to other masonry bits, for 2x longer bit life. The flute has an outer groove that quickly removes dust and dissipates heat, increasing drilling speed and extending bit life. Shank fits all SDS Plus and Hilti TE-C rotary hammers. Includes 2 each 3/16-, 1/4-, and 1/2-inch bits.