An ovolo router bit is a cutting tool used in woodworking to create a decorative molding with a convex semicircular profile. The bit has a curved cutting edge that creates a smooth, rounded shape when it cuts into wood.
Ovolo router bits come in a variety of sizes and shapes, with different diameters and degrees of curvature. They can be used to create a range of decorative moldings, such as window and door casings, baseboards, and picture frame edges.
When using an ovolo router bit, it's important to take proper safety precautions, such as wearing eye and ear protection and using a router table or other secure surface to hold the wood. It's also important to use the proper technique to ensure that the ovolo profile is consistent and even along the entire length of the wood. Some ovolo router bits come with a guide bearing that rides along the edge of the wood to help ensure a consistent cut.