General description 4 Pcs 8mm Wood Router Cutter set designed for precision cutting and engraving. These cutters are made from high-quality materials, ensuring durability and efficiency in various woodworking tasks. Technical specifications Shank Diameter: 8mm Cutter Heights: 20mm, 25.4mm, 38.1mm, 50.8mm Body Material: Solid hardened steel Blade Material: Industrial Grade Micro-Grain Carbide Usage Suitable for wood, MDF, particle board, plywood, and other solid boards Can be used to form wooden doors with smooth cutting and no burrs Simple structure makes it easy to operate