Get Extreme results with The Dewalt DT9517 SDS+ Drill Bit The Dewalt DT9517 SDS+ Extreme drill bit is 6mm in diameter with a working depth of 200mm. It has great performance in terms of speed, life, and endurance. Perfect for drilling materials such as concrete, masonry, stone and brick thanks to its superior carbide grade construction and hardened body. The new tip design ensures better bit penetration for optimum drilling performance and precision. Features: Optimised flute design allows efficient debris removal Hardened body for extra strength and reduced breakage Superior carbide grade for long life and greater durability New tip design ensures better bit penetration, longer life, faster drilling and greater durability Specification: Diameter: 6.0mm Total Length: 260mm Working Length: 200mm