An ogee router bit is a cutting tool designed for use with a router to create decorative edge profiles on woodworking projects. It is named after the ogee curve, which is a double S-shaped curve commonly used in architectural and furniture design. The ogee router bit features a spinning cutting edge or blade that is shaped in the form of the ogee curve. It typically has a bearing or guide at the top that follows the edge of the material, controlling the depth and shape of the cut. The bit is secured into the collet of a router, and when the router is activated, the bit rotates and cuts into the wood to create the desired profile.