The makita genuine 191961-6 carbon brush cb304 is an original manufacturer replacement part designed to restore reliable performance to compatible makita power tools. Carbon brushes are a critical wear component in brushed electric motors, responsible for transferring electrical current to the rotating commutator. Over time, these parts naturally wear down through use, and fitting a genuine replacement ensures the motor continues to operate as intended. Using an authentic makita part rather than an aftermarket alternative helps maintain the integrity of the motor, reducing the risk of premature wear, overheating, or damage to the commutator. For tradespeople who depend on their tools day to day, genuine spares are the dependable choice. This carbon brush is suitable for use when a tool begins to show signs of motor wear, such as reduced power, intermittent running, or visible sparking at the brush housing. Replacing brushes at the appropriate interval is a straightforward way to extend the working life of a compatible makita tool. Features and benefits: genuine makita part ensures correct fit and performance maintains motor efficiency and helps protect the commutator suitable for brushed makita power tools requiring cb304 carbon brushes straightforward replacement to extend tool service life