DEWALT SDS Plus XLR Full Head Carbide Drill Bits have a solid carbide tip that offers users the highest performance in the toughest applications. The 4-cutter geometry provides clean holes, high drilling speed and reduces the chance of jamming of the drill in reinforced concrete. Made from a superior hard metal alloy with an increased drill core structure for greater resistance to fracture. Optimised flute design allows for efficient debris removal. This DEWALT XSDS Plus XLR Full Head Carbide Drill Bit has the following dimensions: Diameter: ;5.5mm.Working Length: ;100mm.Overall Length: ;160mm.Pack Quantity: 1.