The DeWalt innovative EXTREME 2 SDS-Plus drill bit is amongst the best in terms of its speed, life and endurance. Features and Benefits Superior carbide grade for long life and greater durability Optimised flute design allows efficient debris removal Hardened body for extra strength and reduced breakage New tip design ensures better bit penetration, longer life, faster drilling and greater durability Superior carbide grade The widespread use of these DEWALT products by professional tradesmen around the world has made DEWALT the number one selling brand of professional power tools.