I have a jig to mount a drill in to do the job with, no problem there. It's to make equal curved cuts in a rocket box for the alt bearing of a dob mount - the Teflon pads will sit in this cut so it needs to be accurate. This is not a job to just eyeball & wing freehand. A jigsaw won't do as the blade can sque while the curve is cut. A jigsaw can do the gross cut, but I only see a sanding drum being able to do the fine shaping. A hole saw won't do either.
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