DeWalt QZ Extreme 2 SDS Plus Drill Bits - 110-1000mm - DEWALT DT9559-QZ, This 12 x 1000mm drill bit from DeWalt has been manufactured to a very high standard courtesy of the superior carbide grade for long life and greater durability, while the hardened body offers extra strength and reduced breakage. Whether you are a profressional tradesman or DIY enthusiast, the drill bit delivers speed and endurance, along with an optimised flute design for efficient debris removal. DEWALT DT9559-QZ Extreme 2 SDS Plus Drill Bit 12 x 1000mm