SDS Plus EXTREME 2® Drill Bit 10 x 1000mm - DEWALT DT9591-QZ, The DEWALT SDS Plus EXTREME 2®Drill Bit is made from superior carbide grade for long life and greater durability. The hardened body adds further strength and helps to reduce breakage. Its optimised flute design provides efficient debris removal whilst the tip design ensures better bit penetration.This DEWALT SDS Plus Extreme 2 Drill Bit has the following dimensions: Diameter: 18mmWorking Length: 550mmOverall Length: 600mmPack Quantity: 1 DEWALT DT9591-QZ SDS Plus EXTREME 2® Drill Bit 18 x 600mm