In a video I watched on making a window stool, the guy mentioned a "beading" bit.In my experience, the stool is usually really simple...like just a little round over to soften the edges. If you want to be somewhat more decorative, that is usually done with the apron...the piece below the stool. Just my 2 cents.
Only need to make one.now, 2nd question: how many do you have to make ?
a photo of what you actually have would help us help you with the tools needed.
and again, the term "Simple and Traditional" means different things in different parts of the country.
are you trying to match existing trims of your home ?
You say you want a traditional profile so I suggest you look at different stool caps in your area. Different regions of the country have different traditional edge shapes and even those shapes change through time so you will have more than one option even for your location. Another thing to consider is whether it will be painted or stained and how thick your material will be. The thicker the material means that if you want a more detailed profile you will not have to stick with a simple roundover on the upper and lower edges. For myself, I prefer a simple 1/4 inch on the upper and lower surfaces. Stool caps can often be subject to abuse and the more detail the more the damage will be noticed. I have noticed that in some areas the ends of the caps are mitered so they return to the wall. I do not believe this was ever traditional and having worked as an itinerant carpenter in New Hampshire, Massachusetts, Texas, Hawaii, Maine, Oregon and Alaska I have only seen stool caps returned to the wall in newer houses. If you are going to use stain and return the caps the miter will have a conspicuous line.but the ends will stain nicely because no end grain will be showing. If you are going to stain endgrain sand it very smooth and I believe there are products to apply to the endgrain before the stain that will prevent the stain from being considerably darker than the rest--but a painter will be able to tell you more about that. If you paint it then just sand the endgrain smooth.I need to trim out a window and have some trim board to make a stool. What would a simple traditional profile be for a window stool?
Wow, I would never have thought that something like this is so easily available. Great find.So it turns out they make "window sill" router bits. E.g., Yonico Router Bits Window Sill 3/4-Inch 1/2-Inch Shank 18144: Amazon.com: Industrial & Scientific
Maybe this profile for the stool, then apron that is the same as the casing I'm using for this window?