Features: 1.Precision-engineered for carving resin, plastic, porcelain, soft metals, and stone with efficient cutting performance.2.Ideal for shaping molds, smoothing wood, and polishing jade surfaces without abrasive emery wheels.3.Hex-shaped handle design enhances grip stability and ensures smooth operation without vibration.4.Equipped with high-speed steel construction providing long-lasting sharpness and smooth cuts.5.Compatible with standard 6.35mm shank tools, ensuring secure and accurate clamping for consistent results. 6.Suitable material: wood Package Included: 5 x High-Speed Steel Rotary File Grinders