ARKSEN Heavy Duty, Rotary Hammer Drill, Carrying Case, 1.5-inch Provide Rapid Impact Forces That Pulverize Material For Quicker Drilling With Less Effort Use Rotation And Hammer Functions Separately Or In Combination For The Most Effective Results Dual Function: Drill & Demolition; Metal Case Included Rated Voltage: 110V/60hZ; Rated Power: 1000 Watts No Load Speed: 400RPM; Maximum Drill Diameter: 1-1/2 (38mm)