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Jasper

Circle Pro 400 - Small Circle Router Jig

$38.99

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The Jasper 400 Circle Cutting Jig is an ideal tool for the speaker maker, woodworker, Maker, or DIYer who wants perfect circles every time. Originally designed primarily for making smaller speaker cutouts, particularly for tweeters and midranges, it can also aid in flush mounting...

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The Jasper 400 Circle Cutting Jig is an ideal tool for the speaker maker, woodworker, Maker, or DIYer who wants perfect circles every time. Originally designed primarily for making smaller speaker cutouts, particularly for tweeters and midranges, it can also aid in flush mounting speaker drivers.

Converting a plunge router into a precision circle cutting device, the jig allows the craftsman to make 105 different size cutouts in 1/16" increments. The cutouts range in size from 1 to 7-1/4". Manufactured from cast acrylic, the jig can be left on the router as a subbase, and be used with MDF, plywood, particleboard, solid woods and plastic sheeting. This circle cutting jig mounts directly to the base of 47 different models of plunge routers with included hardware.

  • 105 different size cutouts in 1/16" increments
  • Made from cast acrylic with distinct markings for size
  • Originally designed for smaller speaker cutouts, tweeters and midranges
  • Smaller precision circles from 1" to 7-1/4" holes
  • Simply drill a hole and use the provided pivot pin for setting the center of the circle
  • Circle cutting jig mounts directly to the base of 47 different models of routers with included hardware – check compatibility guide
  • Jig will not fit these routers: All Festool, all Triton, Black & Decker RP250, Bosch 3.5 HP

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Reviews

4.0 out of 5 stars
6 Reviews
  1. 5.0 out of 5 stars
    by on

    Works great for making circle jigs

    This is a pretty slick design for routing circular holes over a wide range of diameters. Easy to use. To ensure precision, maximum easy of use, and to minimize wear and tear on this precision jig, I use this tool only for making a hole of the desired diameter in a piece of 1/4" MDF. I can then use the MDF sheet as a template to make as many holes of this diameter as I need, with a template / flush trim bit.

  2. 1.0 out of 5 stars
    by on

    Not made to last

    Bought this on 04/08/2015 and used it the first time about 6 weeks later on a brand new Dewalt DWP611PK compact router. I was making a 2 3/4" circle in 3/4" thick poplar using a new Whiteside 1/4" up cut spiral bit , I made 3 cuts 1/4" deep and on the last cut about halfway thru the base cracked at the screw mounting hole and I had been very careful to not over tighten the screws. Also the sides of the cuts were rough due I think to the Pin moving in the base plate so the cut had several divots around the cut. I just ordered another one because I really like the design and amount of different size cuts that should be possible with this tool and I have a lot of projects that I could use it on. If the new one breaks too I won't buy another one or probably any other Jasper product in the future. Maybe if they would just make it out of aluminum or some other metal it would be a stronger and longer lasting tool. So for now I would Not recommend this but we will see what happens with the new one.

  3. 3.0 out of 5 stars
    by on

    Easy to break otherwise good

    This jig will break at screw bosses with repeated use. Use extreme caution tightening screws. Not built to last.

  4. 5.0 out of 5 stars
    by on

    I am 100% satisfied with this item.

    I use the jig to make PERFECT CIRCLES for corn toss boards.

  5. 5.0 out of 5 stars
    by on

    Now it's easy

    I like the effectivness of this accessoir, makes it real easy to be a speaker-builder.

  6. 5.0 out of 5 stars
    by on

    I would buy this again

    Used to cut many 6" holes, worked great

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