Demolition Hammer DH1750 Voltage/Freqency: 220-240V~ 50Hz, Input power:1750W No-load speed:900-1890/min Impact Rate:0-4400/min Impact force:6-30J 1. SDS MAX 2. Double insulations,constant electronic control system 3. Five pit drill bits,the display best chisel truncates the contril function 4. The constant electronic system assure under the heavy load the constant speed performance 5. The electronic limitless velocity modulation,ultra moves