Rated voltage 230V Frquency 50/60Hz Rated Input power 620/750/800/850W No Load speed 900r/min Impact rate 4,300min-1 Drilling cap steel dia:13mm steel dia 13mm Concrete dia 26mm wood dia 30mm Measurement 43x22x37cm GW/NW 14.5/12.5kg Qty 2sets Drill Spec:8*150mm 12*150mm 18*350mm Sharp chisel spec: 14*250mm Flart chisel spec: 14*250mm Chuck: 13mm