Voltage: 120V ACAmperage: 13.0ANo Load RPM: 170 - 340No Load BPM: 1,700 - 2,900Chuck Style: SDS-MAXMax Capacity In Concrete: 1-5/8"Powerful 13.0A Motor Drives 6.5 ft. lbs. Of Impact Energy For Professional ResultsTool Free Bit Changes With Automatic Bit Locking And Maximum Impact-Energy Transfer RateDual Mode Selector Knob Allows The Tool To Be Switched Between Rotary Hammer Mode Or Hammer Only ModeVario-Lock Positioning Optimizes Work Angles For The Best Chiseling Location360 Degrees Auxiliary Handle Offers Operator Comfort Due To A Wide Range Of PositioningIntegral Slip Clutch Offers More User Security Because It Disengages The Output Shaft Should The Bit Get Into A Bind SituationConstant Response Circuitry Provides Soft Start And Maintains Constant Speed Under Load And Provides Overload ProtectionVibration Reduction In The Hammer Mechanism And The Grip Area Provides Maximum User Comfort For Extended Periods Of WorkElectro-Pneumatic Impact System Maximizes Impact Force And Minimizes VibrationsWorks With Bosch Pro+Guard Dust Solutions, An End-To-End Dust-Collection System Than Helps Users Move Towards OOSHA Silica Table 1 Dust ComplianceIncludes Tool, Auxiliary Handle And Carrying Case