Advantages The most powerful tool in its class - for the toughest applications Bosch high-performance motor (1100 W) with high torque for the most heavy-duty applications with large diameters (drilling, working with core cutters and holesaws), screwdriving and stirring Sturdy metal gear housing for long lifetime Anti-rotation mechanical overload clutch for high level of work safety, even in the toughest applications Rated input power* 1,100 W Weight 2.9 kg No-load speed, 1st gear 0 ? 900 rpm No-load speed, 2nd gear 3,000 rpm Chuck capacity, min./max. 1.5 ? 13 mm Impact rate at no-load speed 0 ? 15,300 / 51,000 bpm Drilling range Drilling diameter in concrete 22 / 13 mm Drilling diameter in wood* 40 / 25 mm Drilling diameter in steel 16 / 8 mm Drilling diameter in masonry* 24 / 16 mm