Compatible with Bosch PMF 180 E 0603339763 0603339738 0603339740 0603339703. Dimensions: 5x8x9.5mm Spring length 33mm, please check carefully. High elastic return spring ensures that the carbon brush always maintains good contact with the motor commutator, effectively reducing arc and heat accumulation. Timely replacement of carbon brushes can effectively prevent motor damage and increase the overall service life of the tool, suitable for long-term high-frequency use scenarios. Compact structure, easy installation, users can replace it by themselves, without professional tools or additional modifications, maintenance is more efficient., Manufacturer: OTOTEC