electric hammer Max Dia:20mm,26mm,38mm Rated Voltage;110v,220v,230v No load speed: 3900 r/min electric hammerBlade Diameter 32 mmRated Voltage220 vRated Input Power1200 wRated Frequency50/60 hzNo load speed800 r/minKnocking frequency4000bpmNet weight 8 kg Disc Diameter20 mm Rated Voltage220 vRated Input Power500 wRated Frequency50/60 hzNo load speed3900 r/minNet Weight2.3 kgsCase Specification 49 ...