Feature: 1. High Polishing: Carbide burrs set offers high polishing quality, capable of processing high-accuracy mold cavities in various shapes. 2. Finishing: Cylinder head porting kit provides high-efficiency, high-quality surface finishing, long service life, and reliable performance. 3. Tungsten Steel Material: Carbide tips are made from high-quality tungsten steel, offering high hardness, durability, and extended lifespan. 4. Application: Suitable for grinding and polishing cast iron, carbon steel, alloy steel, stainless steel, and other similar materials. 5. Compatibility: Designed to be used with handheld electric or pneumatic tools; can also be used with machine tools. Specification: Item Type: Carbide Burrs Set Material: Tungsten Steel Color: Silver Shank Type: Approx. 6mm / 0.2in Round Shank Maximum Cutting Diameter: Approx. 10mm / 0.4in Grinding Head Hardness: 85HRA Product Length: Approx. 150mm x 10mm / 5.9in x 0.4in (Length within this range) Applicable Tools: Handheld Electric or Pneumatic Tools (Compatible with machine tools) Uses: Ideal for grinding and polishing cast iron, carbon steel, alloy steel, stainless steel, and similar materials Package List: 6PCS x Carbide Burrs Set Note: Always wear appropriate protective equipment when operating this product.