Semi-automatic angle grinder for cutting metal

The invention discloses a semi-automatic angle grinder for cutting metal. The semi-automatic angle grinder comprises a machine body, a machine front is arranged at one end of the machine body, a holding handle is arranged at the other end of the machine body, a frequency conversion motor is arranged inside the machine body, and a power source wiring block is connected to the bottom of the other end of the frequency conversion motor; a frequency conversion control button is arranged on the front end face of the frequency conversion motor, the outer side end of the frequency conversion control button extends to the outer surface of the machine body in a cut-through mode, an output shaft is arranged at the output end of the frequency conversion motor, and first conical teeth fixedly sleeve the other end of the output shaft. According to the semi-automatic angle grinder, through a burst-prevention protection hood, chippings are prevented from bursting out in the cutting and angle grindingprocess, the harm caused