Durable and versatile grinding stones for chainsaws Material and durability Made of sturdy chrome steel, these grinding stones are designed for durability and long service life in chainsaw sharpening tasks. Application and performance Designed for use with chainsaws, these grinding tools can also be used for jade carving workpieces. They offer processing accuracy and efficiency, suitable for materials such as bodhi, wood, molds, and steel. Sizes and shape Available in 4 mm, 8 mm, and 5.5 mm sizes, these grinding stones are cylindrical in shape. They fit a range of chainsaw requirements and provide flexible usage options. Use scenarios 1) Chainsaw chain sharpening and maintenance to restore cutting performance. 2) Jade carving and shaping of small workpieces requiring precise grinding. 3) Finishing or grinding on wood, molds, and steel components for smooth surfaces.