Features: This rotary cutter is a spherical wood carving tool designed to efficiently grind 40mm diameter wooden grooves in woodworking projects. Fine polishing treatment: The blade features fine polishing for a sharp, wear-resistant edge, ideal for finishing work. High Quality: Made from wear-resistant carbon steel, this tool offers enhanced durability and a long service life. The ball gouge is capable of handling speeds up to 12,000 RPM. Easy to use: Designed for comfortable and convenient operation, it allows efficient material removal. The coarse coating enables fast stock removal while maintaining a relatively smooth surface finish. Two options: The 14mm shank model is compatible with 115mm and 125mm angle grinders, while the 10mm shank model fits 100mm angle grinders. Choose the appropriate size for your needs. Angle grinder not included. For use on non-metallic materials only.