Hi Paul, that is a difficult question to answer, but I'll give it a try.
First the Foredom machine, a coarse typhoon bit, I buy the Red typhoon bits, this is for roughing out the carving. Then use a cushioned sanding drum, one that you put the sandpaper on. Starting with coarse sand paper, then the medium, then the fine sandpaper. This is done to take out all the marks before starting to detail. Good quality Swiss sandpaper is a must!!.
When starting to carve muscle tone, feather groups etc, use a Micro Motor, or the foredom with a small Typhoon bit, usually a blue typhoon bit, the blue typhoon cuts a little smoother, and rough out the feather groups etc with that. There are several bits in this category,
tapered, cylinder, round. Each bit is used according to the cut you want to make, you should have
all three shapes, the same with the larger coarse bits. I have many bits and burrs, a lot of them I suppose I could do without. The three basic shapes are a good way to start.
Next use a bull nosed tapered carbide cutter to clean up the cuts made with the blue typhoon bits.
Also when you buy certain Foredom model grinders, included is a package of typhoon bits.
Stones are another way to detail,
white, blue, and red stones. They are not expensive, and are great for carving small detail, etc.
Lastly bird carvers use a burning pen to detail their feathers..
Hope this helps,

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