... 5.Rated Input Power:600W 26mm Rotary Hammer, impact drill 600W,26mm rotary drill hammer Certificate: Certificate of CCC ISO9001 certificate ... quality. High quality of dual-insulation, safety clutch, powerful motor, thoughtful design of light weight, compact and well balanced ... Z1C-KD28-26Rated Voltage:110/220V Frequency:50-60HZMax. Drill Diameter:26mmRated Input Power:600WNo Load Speed:0-870RPMN. ...