Cove router bits are specialized cutting tools used in woodworking to create concave profiles or coves along the edge or surface of a workpiece. These bits feature a curved cutting edge that forms a concave shape, similar to a quarter-circle or U-shaped groove.

Cove router bits are commonly used for decorative purposes, adding elegance and visual interest to furniture, moldings, trim, and other woodworking projects. They can create smooth and flowing curves that soften the edges and enhance the overall aesthetic appeal of the piece.