High-performance B-type carbon brushes specifically engineered for the 24V starter motors used in heavy-duty JCB excavators and large-scale earthmoving equipment. These brushes are manufactured with a high-density copper-graphite composite optimized for 24V high-voltage systems, ensuring the massive electrical transfer required to crank large-displacement industrial engines. The B-type configuration provides a robust, stable fit, offering superior vibration resistance and reliable ignition performance in the most demanding construction and mining environments.