Electric screw driver all of our products have got GS,CE,EMC approved, and gained good repution in market. low price Electric screw driverRated Input Power :450WCapacity Concrete Screw :6mmSteel Screw :5mmNo-Load Speed :0-3000min-1Nos.Per Package :10pcsG.W./N.W. :20/18kgsCarton size:45*42*33cmPcs/Container(20) :4500pcs Electric screw driver(portable tools,power tools)