Universal compatibility Designed to fit most chainsaw blades this lithium battery chainsaw sharpening kit effortlessly maintains your oil chain for enhanced cutting efficiency Stable performance Equipped with professional manufacturing and accuracy craftsmanship the cordless sharpener delivers consistent and reliable sharpening results every time Easy operation Features a convenient 45 hour charging time and up to 60 minutes of working time making it simple and efficient for both beginners and experienced users Durable construction Made from ABS and steel materials this red handheld sharpener offers hardness safety and long lasting service life for rigorous use Use scenario On site or in the workshop use this sharpener to quickly restore cutting performance after heavy use or routine maintenance for your chainsaw Use scenario Field forestry or arborist work use the cordless sharpener to perform reliable sharpening in the woods ensuring peak efficiency and safety Use scenario Home or farm use keep firewood prep and woodwork projects on track with easy portable sharpening that maintains chain performance between tasks