The VIERDWIN 3-Flute Coated Roughing End Mill is specifically designed for machining aluminum, copper, magnesium alloys, and composite materials, offering exceptional cutting performance. Its DLC (Diamond-Like Carbon) coating enhances tool wear resistance and reduces friction during the cutting process, ensuring a smooth and efficient cutting experience. Whether for high-speed machining or precision operations, this end mill provides outstanding stability and tool longevity, making it an ideal choice for both professional machining and DIY enthusiasts. Each set includes two 1/4" shank end mills, compatible with various CNC routers, allowing users to tackle a range of machining tasks. The three-flute design effectively increases cutting efficiency, reducing processing time and ensuring higher productivity. Whether you're engaged in complex milling operations or working with different materials, the VIERDWIN roughing end mill meets your needs, helping you achieve precise and high-quality machining results.