The Bosch 11264EVS 1-5/8-In. SDS-max® Combination Hammer features a powerful 13.0-AMP motor and has a dual-mode selector for combination versatility - rotary hammer or hammer-only mode. Providing 6.5 ft.-lbs. of impact energy, the tool weighs only 15.2 lbs., for a top performance-to-weight ratio. The hammer has integral clutch that helps to minimize torque reaction. Concrete contractors will appreciate the production in drilling and chiseling applications. The hammer's 12-position Vario-Lock™ helps to optimize chiseling angles. Bosch's Vibration Control™ in the hammer mechanism and grip area provide improved user comfort. And with Constant Response™ circuitry, users benefit from smooth starts and constant load under pressure.