Role of carbon brushes: Motor carbon brushes have good switching and current collection performance and are used for replacement and daily maintenance. Because worn carbon brushes are a common cause of temporary loss of engine function, reduced electric brakes and reduced engine performance. Robust and durable: The replacement carbon brush is made of high quality, durable graphite metal with high hardness and wear resistance and difficult corrosion resistance, low sparking, low noise and long lifetime. Carbon brush is one of the most commonly used parts of power tools Carbon brush replacement: After replacement, the motor has a better maintenance effect and avoids interruptions caused by poor contact of each carbon brush. It can solve the problem that the engine stops periodically and restores the electric engine brake. Wide range of applications: Motor carbon is widely used for electric circular saws, miter saws, electric drills, electric hammer drills, dust collectors, motorcycles,