●[Premium Tungsten Steel] High-quality tungsten steel for lasting performance.The Spiral Router Bit is made of high-quality tungsten steel , ensuring high durability and excellent cutting performance. Compared to ordinary high-speed steel (HSS), carbide offers better durability and heat resistance. ●[Dual-Flute Spiral Design] Achieve precision and efficiency with the dual-flute spiral design. The double-helix design of the Spiral Router Bit allows for efficient chip evacuation and reduces vibrations during operation, resulting in a smoother and more precise cut. ●[Wide Compatibility] Suitable for various woodworking tasks.Versatile tool compatible with a range of woodworking projects. ●[Extra-Long Milling Cutter] The extended design allows for deeper milling and cutting.The Router Bits allow for precise and efficient cutting results. The "Extra Long" design is ideal for processing deep grooves. ●[Excellent Performance]Boost your woodworking efficiency with this high-performance milling cutter.The Spiral "Compression" Router Bit creates a clean top and bottom surface.