Perfect hold and optimal power transmission of the machine to the drill through optimized shank 2-step coil - effective dust removal improves the drilling performance (from 6 mm ø and 150 mm length)EXTREME Dewalt 2 SDS Plus hammer drills offer top performance in continuous use in hard (even reinforced) concrete, masonry, natural and synthetic stone· Drill head design for increased durability, drilling speed and durability due to aggressive head construction with flat, wear-reducing cutting edges· The 160° drill head cutting design enables even better spot drilling while increasing resistance and durability· Core reinforcement and hardened steel bodies ensure maximum strength and a high degree of fracture resistanceThis text is machine translated.