Features: Crafted from premium alloy steel with precise heat treatments, these double flutes straight router bit feature a durability HRC58-62 hardened edges for extended lifespans in highly intensity woodworking operations. Optimized 1/4inch shank tolerance ensures seamlessly compatibility with standard collets, while the geometrically enhances flutes minimize frictions and improve chip evacuation during routings tasks. Ideal for professional woodworkers and DIY enthusiasts requiring millimeter level accuracy in cabinetry, furniture joinerys, or decorative panel grooving projects. Effortlessly carve clean, splinterfree channel in hardwoods, plywood, for applications like drawer slide installation, inlay work, or decorative trim detailing. The vibration dampening balanced design and antislip shank surfaces enable stable, low noise operation, backed by clear specifications for quick task specific bit selection. Specifications: Component: Steel Size: Approx.56.5x6.35x6.35mm, 56x7.96x6.35mm, 62.5x9.52x6.35mm, 62.5x12.7x6.35mm. Package Includes: 1set/4pcs Woodworking Router Bit note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.