The Porter-Cable 43425PC 1/4-inch Roundover Router Bit is designed for making smooth and uniformly rounded edges. The lower depth setting results in rounded corner with decorative fillet. Features: Radius: 1/4 Inch Flute Length: 1/2 Inch Shank Diameter: 1/2 Inch Overall Length: 2-13/64 Inch What's In The Box: Porter Cable 43425PC 1/4-inch Carbide Tipped Roundover Router Bit