Multiple Uses of one Electric Hammer ,Suitable for All Kinds of Engineering Construction Features: 1.Multifunctional and practical, delicate, and durable! 2.The machine is in combination with the functions of the electric hammer and electric drill. Turn the switch to transform functions. 3.Adjustable modes: 4 modes: Flat Drill Mode, Hammer Mode, Shovel Mode, Calibration Mode 4.Damping auxiliary handle and ergonomic handle make it easier to use 5.For drilling metal, wood, plastic, ceramic tiles, brick walls, granites, and screw twisting. 6.Ventilation holes prevent the electric hammer from being overheated. 7.The handle is wrapped up with rubber to prevent slipping. 8.Less wear of the locking SDS chuck, locking the drill chuck, lower wear.