Feature: 1. High Polishing: Carbide burrs set has good quality and high polishing degree, which can process high accuracy mold cavities of various shapes. 2. Finishing: Cylinder head porting kit provides high efficiency, high quality finishing, long service life, and good performance. 3. Tungsten Steel Material: This carbide tip is made of high quality tungsten steel, offering high hardness, durability, and extended service life. 4. Application: Carbide burrs set is suitable for grinding and polishing cast iron, carbon steel, alloy steel, stainless steel, and other materials. 5. Compatibility: The cylinder head porting kit is designed to be used with handheld electric or pneumatic tools and 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 Scene: Handheld Electric or Pneumatic Tools (Can also be used with machine tools) Uses: Suitable for grinding and polishing cast iron, carbon steel, alloy steel, stainless steel, and other materials Package List: 6PCS x Carbide Burrs Set Note: Please wear protective equipment when using.