Impact Drill all of our products have got GS,CE,EMC approved, and gained good repution in market. We have different models. Impact DrillRated Input Power :500WNo-Load Speed :0-2500min-1Impact Frequency :0-40000min-1Max.Drilling Dia Concrete :16mmIn Steel :13mmIn Wood :25mmNos.Per Package :10pcsG.W./N.W. :24/22kgsCarton size :46*37*30cmPcs/Container(20) :5500pcs Impact Drill