Electric hammer is a widely used electric tool. On the basis of the electric drill, the electric hammer is to add a piston with a crankshaft and connecting rod driven by the motor to compress air in a cylinder to make the air pressure in the cylinder change periodically. The changed air pressure drives the hammer in the cylinder to hit the top of the drill bit to and fro, which is equivalent to hitting the drill bit with a hammer. It is named electric hammer.

During the electric hammer operation, master the electric drill or the handle of the electric hammer. When drilling, first put the drill against the working surface of the special-shaped rivet, and then start it with moderate force to avoid shaking; If the speed drops sharply, the force shall be reduced to prevent the motor from overloading. It is prohibited to use a wooden shoulder to pressurize. When drilling, pay attention to avoid the reinforcement in the concrete.