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Circle Cutting Jig for Router — 5-in-1 Aluminum Alloy Woodworking Guide, Adjustable 10"–58" Large Circle Cutter
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$13.68
Regular price
$49.84
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Circle Cutting Jig for Router — Adjustable 10"–58" Aluminum Alloy Woodworking Guide for Perfect Large Circles
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.
Compatibility: Fits most standard plunge routers and fixed-base routers. Compatible with common router base hole patterns. Suitable for wood, plywood, MDF, and composite sheet goods. Verify your router's base plate hole spacing before ordering.
Fit Note: Router base plate hole patterns vary by brand and model. If you are unsure whether this jig fits your router, please contact us with your router's make and model before purchasing.
✅ Key Features of These 5 in 1 Router Milling Groove Bracket, Aluminum Alloy Circle Cutting Jig, Adjustable Woodworking Guide Tool for 10" - 58" Large Circle Cutting
- Wide 10"–58" Adjustable Range — The sliding arm locks at any radius from 5" to 29" (giving diameters of 10" to 58"), covering small decorative circles up to large round tabletop cuts in a single jig.
- Rigid Aluminum Alloy Body — Die-cast aluminum construction keeps the arm stiff and dimensionally stable during full-arc routing passes, eliminating the flex and drift common in plastic circle jigs.
- 5-in-1 Routing Functions — Beyond circle cutting, this woodworking guide tool handles straight-line routing, groove milling, slot cutting, and edge guiding — reducing the number of separate jigs needed in your shop.
- Center Pivot Pin System — The included pivot pin anchors the jig to the workpiece center point, keeping the router on a true circular path without drift or slippage throughout the entire 360° cut.
- Tool-Free Radius Adjustment — The sliding arm adjusts quickly along the calibrated scale and locks securely, so you can dial in your target radius and move from setup to cutting without extra measuring steps.
- Multi-Material Compatibility — Works with solid wood, plywood, MDF, particleboard, and soft composite panels — making this router circle cutting jig a practical tool for furniture building, sign making, and cabinetry work.
📐 Technical Specifications — 5 in 1 Router Milling Groove Bracket, Aluminum Alloy Circle Cutting Jig, Adjustable Woodworking Guide Tool for 10" - 58" Large Circle Cutting
| 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) |
❓ Frequently Asked Questions
What circle sizes can this jig cut?
This circle cutting jig is adjustable from 10 inches (254mm) to 58 inches (1473mm) in diameter. That covers a wide range of woodworking projects — from small decorative rounds and lazy Susan bases (10"–18") to full-size round dining tabletops (42"–58").
What routers is this jig compatible with?
This jig is generally compatible with most standard plunge routers and fixed-base routers. The base plate mounting holes are designed to fit common router base patterns from brands like DeWalt, Bosch, Makita, and Porter-Cable. Because base plate hole spacing varies by model, we recommend checking your router's base dimensions before ordering, or contacting us to confirm compatibility.
What does "5 in 1" mean — what functions does this jig perform?
The 5-in-1 designation covers five routing applications with a single adjustable bracket: circle cutting, straight-line routing, groove milling, slot cutting, and edge guiding. This makes it a versatile woodworking guide tool that replaces several single-purpose jigs.
How do I set the jig to a specific circle diameter?
Set the sliding arm so the distance from the center pivot pin to the center of the router bit equals half your desired diameter (the radius). For example, to cut a 36" circle, set the arm to 18" from pivot to bit center. Use the calibrated scale on the arm for quick, repeatable setup, then lock the arm in place before routing.
Is this jig suitable for cutting large tabletop circles from plywood or solid wood?
Yes. With a maximum diameter of 58 inches (≈1473mm), this jig handles full-size round tabletop cuts from plywood sheets and solid wood slabs. For large-diameter cuts, make multiple shallow passes rather than a single deep cut to reduce router strain and improve edge quality.
Is the aluminum alloy body durable enough for repeated shop use?
Yes. The die-cast aluminum alloy construction is lightweight yet rigid, resisting the flex and warping that plastic jigs are prone to over time. In most shop environments, the aluminum body maintains its dimensional accuracy through repeated use and is not affected by minor sawdust or humidity exposure.
Can this jig be used on materials other than wood?
This jig is designed primarily for wood and wood-based sheet goods (plywood, MDF, particleboard). It can generally be used on soft plastics and composite panels as well, provided you use the correct router bit for the material. Always make a test pass on scrap material before cutting your final workpiece.
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