Durable and excellent sliding properties. 【Main function】Carbon motor brushes are suitable for motor or generator operation. Very good electrical conductivity and low contact resistance are achieved with a high metal content. Durable and excellent sliding properties. Replacement carbon brushes can solve intermittent problems with the motor and, provided they are the right size, they can also be used as replacement parts for other brands of power tools Offers excellent performance, long life and durability. The product is small and light, and can be easily replaced, saving time and effort. 2pcs 20mm X 8mm X 8mm Carbon Motor Brush Copper Wre Electrc 10pcs Carbon Brush Graphite Copper Motor Carbon Br... – Grandado 5mm wide (D) x 5mm thick (W) x 10mm long (H) Very good electrical conductivity and low contact resistance are achieved with a high metal content. Intermittent motors can be restored by replacing the brushes, keeping the power tool running. 8 Pack Power Tool Carbon Brushes 6 Pieces RC Carbon Motor Brush Climbing Car Brush Motor 35mm Replacement Part For 540 550 Universal Motor Brushes For 6V 12V 24V The coils of the rotor must be connected to form a complete circuit.