Circle Cutting Jigs and Corner Radius Templates for Router Work
Cutting accurate circles and consistent rounded corners freehand is difficult — even for experienced woodworkers. Circle-cutting jigs and corner radius templates act as guides that constrain the router to a precise arc, producing smooth, repeatable results whether you are cutting tabletops, decorative panels, or cabinet doors with radiused corners.
Circle and Oval Cutters
The Oval Circle Cutter with Vacuum Base uses a vacuum chuck to hold the jig in place without screws or clamps, making it ideal for finished workpieces or situations where you cannot mark the center. The Jasper Pro Circle Making Jig and Milescraft Router Circle Guide Kit pivot from a fixed center pin to cut circles of varying diameters, giving you precise control over the finished size.
Corner Radius Templates
Corner radius templates clamp over the corner of a workpiece to guide the router in a fixed arc. The Kreg Corner Radius Guides and 4-piece Corner Radius Guide Set cover multiple radius sizes so you can match the corner profile to your project's design. The Circle Radius Cutting Template handles both concave and convex arcs in a single tool.
For additional router guidance tools, see the full router jigs and guides collection. Pair with flush trim and pattern router bits for the cleanest arc cuts.