The Porter-Cable 43370PC is a 1/4 inch Edge Beading Router Bit. It is a traditional bead with fillet. It is Ideal for matching old moldings or furniture and architectural woodwork. Features: Radius: 1/4" Flute Length: 55/64" Shank Diameter: 1/4" Bearing Diameter: 1/2" Overall Length: 2-37/64" What's in the Box: Porter Cable 43370PC 1/4 inch Edge Beading Router Bit office