Description: The Cutter can cut all composition materials, laminates, plywood, hard wood and soft wood. Use on portable or table mounted routers. Ground carbide with titanium for long life. Solid Hardened Steel Body, Anti-Kickback Design, Build-Up Resistant Coating. 1/2" diameter bearing flush trim bit with 1/4" Shank. Specification: Material: Alloy Detailed product size: Shank Dia: 6.3mm/0.25inch; Maximum Blade Dia: 12.7mm/0.5inch; Blade Length: 12.7mm/0.5inch 20mm/0.79inch Package Includes: 2 pieces x Woodworking Cutter Note: The colors may be different for the different display, please understand. Please allow 1-3mm error due to manual measurement, make sure you do not mind before you bid