General description 10 PCS Carbide Rotary Burrs for Power Tools are designed for engraving and deburring metal and wood. This set includes 10 different rotary cutters, each with unique head shapes to accommodate various angles and positions, making it versatile for different processing or engraving needs. Technical specifications Shank diameter: 3mm Cutting diameter: 6mm Total length: approx. 45-50mm Usage Burr rotary sets are widely used for grinding, polishing, engraving, chamfering, deburring, and digging into both metal and non-metal materials, including wood and plastic.