Feature: 1. QUICK REMOVAL: Very rough coatings allow quick stock removal while maintaining a relatively smooth finish, very efficient 2. DURABLE MATERIAL AND PROCESS: Made of chrome vanadium alloy steel material, hardened and uniquely polished to make spherical burrs durable 3. OF SHARPNESS EDGE: The cutting edge has undergone a unique fine polishing treatment, and the cutting edge is of sharpness and neatly arranged to grind wood more smoothly 4. FOR WOOD AND METAL MATERIAL: Spherical rotary file is suitable for wood and metal carving, grinding, engraving, very practical 5. APPLICABLE ANGLE GRINDER MODEL: The thread size for 14mm, suitable for 115, 125 type angle grinders, provide great convenience Specification: Item Type: Sphere Rotary File Material: Chrome vanadium alloy steel Application: Spherical burr Scope of Application: Wood grinding Colour: Black Thread Size: Approx. 14mm / 0.55in Applicable Angle Grinder Model: For 115, 125 type angle grinder. Package List: 1 x Sphere Rotary File Note: When using, do not directly hold the spherical part to avoid being stabbed, please wear gloves when holding the spherical part.