Specification: Item Type: Chainsaw Sharpener Burr Function: Grinding Head for Saw Chain Grinder Package List: 20 x Chainsaw Sharpener Compatible with large chainsaw chains such as 404 chain, 3/8" [Durable] The chainsaw sharpener adopts emery material through Ti electroplating process, providing excellent durability. Full and even particle distribution enables stable and efficient sharpening performance. [Function] Chain saw files are mainly used for grinding, processing, mold repair, engraving, line cutting, and welding cutter applications. [Easy to change] Chainsaw grinding file is specially designed for electric grinder, requiring only 2 steps to complete the change, offering convenient operation. [What you will get] You will receive 20 pieces of chainsaw sharpening wheels, providing sufficient quantity for regular use and meeting various maintenance needs.