Voltage: 120V ACAmperage: 13.0ANo Load BPM: 1,300 - 2,900Chuck Style: SDS-MAXExcellent Power-To-Weight Ratio, 6.1 ft. lbs. Of Impact Energy At 13.7 lbs.Tool Free Bit Changes With Automatic Bit Locking And Maximum Impact-Energy Transfer RateVario-Lock Positioning Optimizes Work Angles For The Best Chiseling Location360 Degrees Auxiliary Handle Offers Operator Comfort Due To A Wide Range Of PositioningVibration Reduction In The Hammer Mechanism And The Grip Area Provides Maximum User Comfort For Extended Periods Of WorkConstant Response Circuitry Provides Soft Start And Maintains Constant Speed Under Load And Provides Overload ProtectionAuto-Max Variable-Speed Dial Ensures Maximum Speed And Power Every Time The Tool Is Plugged InService Minder Brush System Eliminates Guesswork , Stops Tool When Preventative Maintenance Is RequiredPower Lights To Ensure Operator That Power Feed Is Live To ToolPadded Rear Handle For Additional ComfortIncludes Tool And Carrying Case