The DeWalt XLR SDS Plus Full Head Carbide Drill Bits are a tough solid carbide tipped drill bit suitable for drilling plug & anchor holes in masonry, all types of stone and concrete. Its 4 flute spiral design aids consistent drilling speed and efficient debris removal. Specifications • Diameter: 5.5mm • Length: 160mm • Working Length: 100mm • Pack Qty: 1 Features and Benefits • The Innovative Full Head Carbide drill bit offers the highest levels of performance to users with the hardest applications • Superior carbide grade and geometry ensures greater resistance to breakage and premature wear to ensure maximum drill bit life and durability • Four cutter geometry delivers maximum hole concentricity for better fixing retention • Optimised four flute design allows efficient debris removal and greater flute durability