The genuine STIHL FG4 Filing Tool, part number 56067500200, is a compact and easy-to-use guide designed for precise sharpening of STIHL saw chains. This essential tool features a built-in file holder and an adjustable depth gauge, ensuring accurate sharpening angles and consistent depth gauge settings for optimal chain performance. Its robust and portable design makes it ideal for on-the-go maintenance. Compatible with 1/4", 3/8" P, .325", 3/8", and .404" pitch saw chains, it helps maintain the sharpness and longevity of your chainsaw's cutting equipment.