Durable and long lasting Made of durable materials, this chainsaw sharpener grinding stone file is built to withstand heavy use and resist damage, delivering reliable performance over time. Versatile tool Designed for grinding chainsaw chains, this grinding stone file can also be used for grinding and polishing jade, providing cross application flexibility for different tasks. precision polishing After polishing, jade carving workpieces achieve a fine ground finish thanks to the file's processing accuracy and efficiency. Wide range of applications Suitable for polishing metals and other materials, including chainsaws, jade, bodhi, wood, molds, and steel, making it a versatile tool for various projects. Use scenarios Chainsaw maintenance: use the file to sharpen and maintain chain teeth for better cutting performance and longer chain life. Jade carving finishing: grind and polish jade surfaces to achieve a smooth, refined finish on carved pieces. Metal and wood finishing: polish metal molds, steel components, and wooden parts to improve surface quality and fit. Key attributes Function: chainsaw chain sharpening and multi material grinding/polishing Compatibility: suitable for chainsaw chains and other materials listed Material: durable grinding stone file construction Performance: provides processing accuracy and efficient finishing for smooth results