Features: Crafted from high hardness high speed steel, this 1/4 inch shank double edged woodworking router bit delivers exceptionally durability and smooth cutting performances for professional woodworking tasks. The double flute design minimizes friction and wood burn while the black oxidation coating enhances corrosions resistance, ensuring precise shaping of wood, composites, and plastic. Ideal for woodworkers, and DIYer enthusiasts seeking reliabled precise tools for detailed joinery and decorative edged profiling. Perfect for creating seamless mortise and joints, intricate moldings, or refining edges on tabletops, cabinets, and wooden crafts in workshops or home garages. This versatile bit combines industrial grade construction with user friendly adaptability for long term workshop efficiency. Specifications: Component: Steel. Size: 6.35x12.7x53.6mm/0.25x0.5x2.11inch Size: 6.35x12.7x56.9mm/0.25x0.5x2.24inch Size: 6.35x12.7x61.9mm/0.25x0.5x2.43inch Size: 6.35x12.7x66.7mm/0.25x0.5x2.62inch Size: 6.35x12.7x72.6mm/0.25x0.5x2.85inch Weight: 26g. Blade blade length specifications: 6.35, 9.53, 14.28, 19.05, 25.4. Package Includes: 1pcs Woodworking Router Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.