Durable chrome steel jade grinding stone file for chainsaw sharpener. Made of chrome steel jade, this tool is resistant to damage and designed for chainsaws, yet suitable for jade carving workpieces with accuracy and efficiency. Wide applicability. Suitable for a range of materials including metals such as chainsaws, jade, bodhi, wood, molds, and steel. It can be used with an electric grinder or a lithium electric grinder, making it suitable for different projects. Available sizes. The grinding stone file comes in three sizes: 4 mm, 8 mm, and 5.5 mm. This allows precise sharpening according to specific blade requirements. Practical use scenarios: Sharpening chainsaw chains to restore cutting performance on job sites or in the workshop. Precision jade carving and shaping tasks that require accurate material removal. General grinding and finishing on wood, molds, and steel in fabrication or maintenance projects.