Carbon brush is made from high-quality materials that ensure durability and reliable performance; designed to withstand the demands of the impact drill's operation., Promax Carbon Brush is specifically designed for use with the PXID204-1 Impact Drill. It is engineered to fit perfectly and function seamlessly with your drill., Carbon brush plays a crucial role in the electrical connection. By replacing worn-out or damaged brushes with the Promax Carbon Brush, you can restore the optimal performance of the motor,