90PCS 18 specifications 5PCS one specification Power Tool Carbon Brush Suitable for various types of electric hammers, angle grinders, circular saws and other power tool repair replacement accessories [Product Name]: Replacement Carbon Brush [Application]: Used to replace carbon brushes on various power tools and motors (such as hammer drills, cutting saws, chainsaws, circular saws, angle grinders, etc.). [Long-lasting durability]: Our carbon brushes are carefully designed with a long service life and minimal mechanical wear, guaranteeing the best performance of household appliances and power tools, and reducing the need for frequent replacement. [Warm Tip: Worn brushes can cause motor smoking or sparking, and should be replaced if this occurs. Our brushes exhibit lower power and friction losses, as well as reduced mechanical wear in sliding contact applications. When replacing carbon brushes, be sure to check your armature for , cracks or other damage, which may indicate a larger motor problem that can be solved by replacing the carbon brushes. After replacing a carbon brush, if it does not take several minutes or hours for the carbon brush to wear out or half, it means that your rotor is not good. Please replace the rotor immediately. Color: Black Material: + Copper Package Contents: 90 x Electric Motor Carbon Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.