• Replacement of carbon brushes for defective motors. • Use in power tools such as rotary hammers, circular saws, and angle grinders. • Materials: graphite and copper, tempered at high temperature. • Content: 30 carbon brushes in 10 sizes, 3 pieces per size. • Sizes: 7x17x19mm, 5x11x18mm, 6.5x7.5x13mm, 6.5x13.5x18mm, 6x10x17mm, 6x9x14mm, 7x11x18mm, 6x8x14mm, 5x8x13mm, 5x8x15mm. • Replace worn brushes to prevent major damage to the motor. • Check the rotor if the new brushes wear out quickly.