Power: 220-240V at 50/60Hz 1500W of input power Speed Without Load: 850 RPM 4400 bpm is the impact rate. Drilling Capacity: 5.5J Max. Impact Energy: Steel: 13 mm, concrete: 32 mm Wood: 40 mm Chuck System SDS Plus One Button Has Four Uses Chisel-Locking System Packed by BMC with Three Drills, Two Chisels, and One Set of Extra Carbon Brushes