Bevel undermount bits are designed to cut precise beveled edges at the junction where undermount bowls and sinks meet solid surface countertops or bathroom vanities. The angled cut creates a smooth, clean transition that improves both the appearance and function of the joint. These bits typically include a bearing that guides the cutter along the workpiece edge, protecting finished surfaces from damage during routing. They are suited to solid surface materials and wood, and are a standard tool in professional countertop installation and cabinetry work.