Specification Brand : Fafeicy BulletPoint1 : [Easy to Use] : The sharpening attachment can be effortlessly attached to your rotating tool, replacing the tool shell for convenience. BulletPoint2 : [Female Thread ] : Specifically designed for chain saw sharpening attachments, the bottom thread is female with a size of 17mm for easy compatibility. BulletPoint3 : [Efficient Design] : Equipped with polishing tools and a head ruler, this attachment provides a more efficient and sharpening experience. BulletPoint4 : [Versatile Sharpening] : This sharpener easily screws onto an electric grinder and efficiently sharpens chains and serrated blades for precise cutting. BulletPoint5 : [High Speed Steel Grinding Head] : The high speed steel grinding head offers high hardness, wear resistance, heat resistance, and impact resistance, ensuring durability and worry- usage. ExternallyAssignedProductIdentifier : 9012824889823 ItemName : Chainsaw Sharpener Attachment High Speed Steel Blade File Tool Kit for Efficient Sharpening ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 13 centimeters ItemPackageDimensions_Width : 9 centimeters ItemTypeKeyword : chain-sharpeners Manufacturer : Fafeicy ModelName : Fafeicy1uygcpf8d9 ModelNumber : Fafeicy1uygcpf8d9 PartNumber : Fafeicy1uygcpf8d9 ProductDescription : Spec: