Hummer drill KH-ED-015 Rated Voltage:110-220V~ Rated Frequency:50/ ... /60Hz650W0- 3900r/minConcrete:16mmSteel:16mmWood:30mmpcsour company line in electric drill, impacy drill, jig saw, angle grinder, marble cutter, chain saw, electric ... , pls contract me, and warm welcome to your trial order. 13mm Hummer drill