Parts List: 1 x 40MM Diameter Sphere Grinding Head 1 x 25MM Diameter Sphere Grinding Head 1 x 30MM Diameter Cylindrical Grinding Head 1 x 20MM Diameter Cylindrical Grinding Head Highlight description: [Compatible] For use with standard 4 1/2 or 5 inch American angle grinders with 5/8-11 threads. No adapters required, just thread directly onto the angle grinder spindle [High Carbon Steel Material] Our rotary burrs are made of high carbon steel for excellent wear resistance and are ideal for roughing, moderate shaping, contouring and grinding [Rapid Material Removal] The Angle Grinder Attachment consists of hundreds of powerful burrs that quickly remove large quantities of wood while leaving a smooth surface, it handles wet or dry wood materials and ensures a fine, clean sanding of the wood [Multi-Purpose] Our Ball Sander Attachment can be used for hand wood shaping, hollowing and undercutting wooden workpieces, and roughing out wood. Great for carving wooden bowls, spoons, tree faces and other wooden artefacts [Size Information] Ball Head Diameter: 40MM, 25MM. Shank Diameter: 25MM. Cylindrical Head Diameter: 30MM, 20MM. Cylindrical Head Depth: 40MM. Package includes 2pcs Ball Grinding Heads, 2pcs Cylindrical Grinding Heads. Meet your daily use and replacement needs Detailed description: Description Our Rotary Burr removes large amounts of wood quickly and maintains a smooth surface that provides a fine polished finish. It is compatible with standard 4 1/2 or 5 inch American angle grinders with 5/8-11 threads. Great for carving wooden bowls, spoons, tree faces and other wooden artwork. Key Features Wear Resistant: The rotary burrs are made of high carbon steel, which is wear resistant and provides you with long lasting performance. Fine Polished Finish: Unique fine polished finish, especially suitable for woodworking projects. The rotary burr quickly removes large amounts of wood while maintaining a smooth finish. Specification Product name: Sphere Rotary Burr Material: high carbon steel Color: black Dimensions: Ball head diameter: 40MM, 25MM. shank diameter: 25MM. total length: 108MM, 102MM. Cylindrical head diameter: 30MM, 20MM. cylindrical head depth: 40MM. Thread type: 5/8-11 thread. Notes: 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2.Please allow slight dimension difference due to manual measurement. [Compatible] For use with standard 4 1/2 or 5 inch American angle grinders with 5/8-11 threads. No adapters required, just thread directly onto the angle grinder spindle [High Carbon Steel Material] Our rotary burrs are made of high carbon steel for excellent wear resistance and are ideal for roughing, moderate shaping, contouring and grinding [Rapid Material Removal] The Angle Grinder Attachment consists of hundreds of powerful burrs that quickly remove large quantities of wood while leaving a smooth surface, it handles wet or dry wood materials and ensures a fine, clean sanding of the wood [Multi-Purpose] Our Ball Sander Attachment can be used for hand wood shaping, hollowing and undercutting wooden workpieces, and roughing out wood. Great for carving wooden bowls, spoons, tree faces and other wooden artefacts [Size Information] Ball Head Diameter: 40MM, 25MM. Shank Diameter: 25MM. Cylindrical Head Diameter: 30MM, 20MM. Cylindrical Head Depth: 40MM. Package includes 2pcs Ball Grinding Heads, 2pcs Cylindrical Grinding Heads. Meet your daily use and replacement needs