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. 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. DEWALT A08 B0070