Dewalt DT9522 SDS+ Extreme Drill Bit 6.5 x 200 x 260mm The Dewalt DT9517 SDS+ Extreme drill bit is 6.5mm 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: 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 Specification: Diameter: 6.5mm Working Length: 200mm Total Length: 260mm