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Cutting a perfect circle freehand is nearly impossible — even experienced woodworkers end up with wobbly edges that require hours of sanding to fix. Whether you're building a round dining table, a decorative wall panel, or a custom speaker cabinet, you need a reliable guide that locks in your radius and keeps the router on track for the full 360°. This circle cutting jig for router gives hobbyists, furniture makers, and shop professionals a repeatable, accurate way to cut circles from 10 inches all the way up to 58 inches in diameter.
This listing includes the 5-in-1 aluminum alloy router milling groove bracket with an adjustable sliding arm, center pivot pin, and mounting hardware. The jig is constructed from die-cast aluminum alloy for a rigid, warp-resistant frame that stays true under repeated routing passes. The adjustable range spans 10" (254mm) to 58" (1473mm) in diameter, covering everything from small decorative rounds to full-size tabletop slabs. Compatible router base mounting patterns are listed below — see variant options or contact us to confirm fit for your specific router model.
This jig is the go-to tool for routing perfect round tabletops from plywood or solid wood slabs, cutting circular shelf inserts and lazy Susan bases, and milling decorative grooves and concentric ring patterns on cabinet doors and sign blanks. The 5-in-1 design also supports straight-line routing and edge guiding, making it a versatile addition to any woodworking shop.
| Circle Diameter Range | 10 in – 58 in (254mm – 1473mm) |
|---|---|
| Radius Arm Range | 5 in – 29 in (127mm – 737mm) |
| Body Material | Aluminum alloy (die-cast) |
| Functions | Circle cutting, straight routing, groove milling, slot cutting, edge guiding (5-in-1) |
| Center Pivot | Included pivot pin for workpiece anchoring |
| Router Compatibility | Most standard plunge and fixed-base routers — see base plate hole pattern |
| Compatible Materials | Solid wood, plywood, MDF, particleboard, soft composites |
| Mounting Hardware | Included — see variant options for full kit contents |
| Arm Locking Mechanism | Sliding lock with calibrated scale |
| Package Contents | 1× adjustable bracket arm, 1× center pivot pin, mounting screws (router base plate not included) |