Make one out of wood....Couldn't be easier and its more than likely free if you have scrap MDF or plywood at your house. Just cut a rectangle thats the width of your router and however long you want your circles to be and attach your router to it. Then turn router on and allow router bit to go through wood. Then all you have to do is take a tape measure and measure from the outside edge of router bit down the wood to the radius of the circle you plan to cut and put a nail or drill bit through it and BAM. Instant perfect circles. and the best part is the jig doesn't have to be straight or anything because as long as your measurement from bit to radius is correct, its gonna cut that size circle every time.
1x Tantric Sounds HD12 on a RD D9 - 148.9dB
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