Product Introduction Durable aluminum components. Quick retainer enables the chisel to be easily changed. Professional for slotting operation,950W new technical motor steadier high quality. Auxiliary handle can be adjusted and turned 3600. The specialist tool for breaker through and demolition work. Low vibration in operation and no load . 　　 Technical Parameters Voltage:110/220/230/240V Frequency:50/60Hz Power Input:1100W No-Load speed:750r/min Rated Impact:4000/min Concrete:28mm Steel:16mm Wood:40mm Weight:5.2Kg