I want to precisely drill some new dog holes in my bench. I would like to use a plunge router to do this, but 3/4" spirals are hard to find and very pricey. It seems that I recall that you can use a 1/2" bit and a larger guide bushing and by rotating in a circle you can route a perfect 3/4" hole using a 1/2" bit.
Any tips or ideas would be much appreciated!