1" SDS Plus Rotary Hammer, Bulldog Extreme, 7.2A Motor, 3 Mode Selector Easily Converts From Rotation Only To Rotary Hammer To Hammer Only Modes, Integral Clutch Helps Minimize Torque Reaction, Variable Speed Trigger, Patented Rotating Brush Plate Equal Power In Forward & Reverse, Cord Turret Allows Cord To Pivot 360 Degrees.