Hqmaster Extra Long Spiral Router Bit 1/4 Inch Shank Solid Carbide Cnc, Carving 4" extra long spiral up-cut router bit with 1/4" shank, 1/4" cutting diameter, and 2 inch cutting length, perfect for CNC carving and milling machine 2 flute design provides fast cutting and excellent chip evacuation. Up-cut spiral design reduces vibration and noise, improving surface quality. Ideal for smoothly up-cut grooves and slots, plunge mortises, cycles and dado with clean edge and bottom The nano blue coat enables the tool's cutting edge to retain pivotal sharpness and fluency which ensure longevity and provide better cutting results of the highest quality. Made from high-quality CNC-machined solid carbide for durability and long-lasting performance Suitable for a variety of materials, including plywood, OAK, MDF, and any hardwood working and long service life for sharp