An angle grinder (100) includes a housing (10) formed with a handle (12a), a clamping device (82) for mounting a grinding disk (92), an output shaft (84) for driving the clamping device (82) to rotate, a brushless motor (85) being provided with a motor shaft (851), a transmission mechanism (20) for transmitting power between the motor shaft (851) and the output shaft (84), and a circuit board assembly (30) for providing electricity to the brushless motor (85). The clamping device (82) is disposed outside of the housing (10) and connected with the output shaft (84). The output shaft (84) is at least partially disposed inside of the housing (10) and connected with the transmission mechanism (20). The brushless motor (85) is arranged between the transmission mechanism (20) and the circuit board assembly (30) in a direction substantially parallel to the motor shaft (851), and the motor shaft (851) is disposed along a direction substantially perpendicular to the output shaft (84).