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Rockler Ellipse/Circle Cutting Router Jig with Standard and Large Bases

Create perfect circles, ellipses and sweeping arcs with your plunge router—includes Large Base for a greater range of shapes!

Item #
In stock
$109.99   Rockler Ellipse/Circle Cutting Jig for Routers (27712)
$59.99   Large Base for Rockler Ellipse/Circle Cutting Router Jig (38410)



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    Cut perfect circles up to 52'' in diameter, and ellipses of the same overall length, but with a width up to 14'' shorter. All this and more is made easy with this jig, two included bases and your plunge router. It's perfect for table tops, signs, picture frames, mirrors and more. Setup takes only a couple of minutes with the tool-free knobs—just line up the bit with your lines and tighten down. As you move the router through the cut, the jig's sliding dovetail mechanism keeps the router precisely on the cut line. In addition to the standard base, this package also includes the large accessory base, which allows a greater maximum difference between the major and minor axes (14'' instead of 8''). Designed for use with just about any plunge router.


    • Includes jig arm, jig base, four dovetail keys, and four locking pivots
    • Single pivot can be locked to make circles up to 52'' diameter
    • Larger base allows up to 14'' difference between major and minor axes
    • Can be drilled to fit most routers with a 6'' base

    Pre-drilled for the following routers:

    • Makita 1100
    • Milwaukee 5615-5624
    • DeWalt 616-618
    • Bosch MRC23 Series
    • Ridgid 2930 Combo Kit
    • Hitachi M12VC (fixed and kit)
    • Porter Cable 690 series, 890 series, 7529, 97529 and 8529 routers

    Note: If you plan to use this product with a Skil router, please download and use the Drilling Template in the Technical Documents section.

    More Information

    More Information
    Brand Rockler
    Tech Spec
    • Minimum Circle Diameter: 9-1/4''
    • Maximum Length for Major Axis: 52''
    • Maximum Difference Between Minor and Major Axis: 8'' (with standard base) or 14'' (with large base)
    • Minimum Difference Between Minor and Major Axis: 3-1/2''
    • Material: Durable 1/4'' thick phenolic


    (1) Rockler Ellipse/Circle Router Jig w/Standard Base (#27712)
    (1) Large Accessory Base (#38410)
    (2) Extra dovetail keys with pivot pins

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    Cancer and Reproductive Harm. For more information go to
    Prop 65 WarningWARNING:
    Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to