Voltage Frequency               230/110 V~ 50/60 Hzinput Power                          1050 WNo Load Speed                    400 r/minImpact rate                           3000 r/minMax Drilling Dia.Concrete:   38 mm                           Steel:        13 mmPacking Size & Pcs              51.2x25.5x32.8 cm /2 pcs

power hammer drill