Specification Brand : Boounyatin BulletPoint1 : Compatibility: The sphere rotary burr is designed to fit a standard 4 1/2 or 5 inch American angle grinder with 5/8-11 threads. (Please note that the inner flange nut on the angle grinder should not be removed.) BulletPoint2 : Materials: Our sphere rotary burr is made of premium 45# carbon steel. Stable performance more strong. Compared to other materials, Our products have a longer service life and excellent wear resistance BulletPoint3 : Fine Polishing Treatment: Angle grinder attachment consists of hundreds of aggressive burrs that remove material at an extremely fast rate while maintaining surface quality ready for final polishing BulletPoint4 : Wide Application: Power sphere grinder attachment for freehand wood shaping, hollowing out and undercutting wooden workpieces as well as roughing out a piece of wood. Great for carving wooden bowls, spoons, tree faces and other wooden art BulletPoint5 : Excellent Present: Gifts for DIY carving fans. Protective measures must be taken before use and safety equipment must be worn Color : Black ExternallyAssignedProductIdentifier : 9466462089044 ExternallyAssignedProductIdentifier1 : 767531840306 ExternallyAssignedProductIdentifier2 : 0767531840306 IncludedComponents : packaging box ItemDisplayDimensions_Height : 1 inches ItemDisplayDimensions_Length : 12 inches ItemDisplayDimensions_Width : 6 inches ItemDisplayWeight : 10 ounces ItemName : Boounyatin Sphere Rotary Burr with 5/8-11 Threads for 4 1/2 and 5 Inch Angle Grinder, Ball Gouge Angle Grinder Attachments Power Carving Tools for Woodworking Polishing Engraving ItemPackageDimensions_Height : 12.2936 centimeters ItemPackageDimensions_Length : 4.699 centimeters ItemPackageDimensions_Width : 4.8006 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : power-rotary-tools Manufacturer : Boounyatin Material : Steel ModelName : MC-SRB-HEI ModelNumber : MC-SRB-HEI NumberOfItems : 1 PartNumber : KUIDAMOS2spwxgbug0 PowerSourceType : Corded Electric ProductDescription : This power grinder attachment is widely used to small and medium wood workers, you can send it to others who like woodwork as a good gift. Please make sure your grinder shaft is 5/8-11 threads (for type 4 1/2 or 5 inch American angle grinder). You don't need any additional adapters. With the 5/8-11" mount, the sphere rotary burr compatible with 4 1/2 and 5" US grinders.